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Colorado State University

Colorado State University is one of our nation's leading research universities with world-class research in infectious disease, atmospheric science, clean energy technologies, and environmental science. It was founded in 1870 as the Colorado Agricultural College, six years before the Colorado Territory became a state.

Colorado State University, located in Fort Collins, Colorado, is situated on nearly 5,000 acres of land, including the main campus, a foothills campus, an agricultural campus, and a mountain campus (Pingree Park). Colorado State also has 4,600 acres for research centers, Cooperative Extension offices, and Colorado State Forest Service stations.
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Image Subject Name Scientific Name Description
5495261 solider beetles Mating soldier beetles on rubber rabbitbrush.
5495174 clover root curculio Sitona hispidulus larva boring in stem
5495262 red milkweed beetle Tetraopes tetrophthalmus
5495263 long-horned beetle Neoclytus spp.
5495175 clover root curculio Sitona hispidulus Found on Medicago sativa. Larva in hand
5495177 clover root curculio Sitona hispidulus Host for this insect is Medicago sativa. Dorsal and lateral view of adult
5495178 clover root curculio Sitona hispidulus Boring damage within alfalfa stem
5495179 clover root curculio Sitona hispidulus Top growth dieback from borer activity in alfalfa
5432744 Dyslobus weevils Dyslobus spp. Dyslobus species near Dyslobus wasatchensis. Recovered from Fremont era archaeological site dated at 10,000 yr, near Gunnison Colorado
5490305 Ips engraver beetles Ips spp. Tops of ponderosa pine killed by ips beetles
5490306 eyed click beetle Alaus oculatus
5490307 eyed click beetle Alaus oculatus
5490312 Mexican bean beetle Epilachna varivestis
5490316 Japanese beetle Popillia japonica Damage to petals and also adults shown
5490317 Japanese beetle Popillia japonica Skeletonizing of Virginia creeper foliage
5490318 Japanese beetle Popillia japonica Damage to petals
5490334 mountain pine beetle Dendroctonus ponderosae Verbenone sachets used to deter colonization of mountain pine beetle
5490323 Mexican bean beetle Epilachna varivestis
5490333 Mexican bean beetle Epilachna varivestis
5490362 mealybug destroyer Cryptolaemus montrouzieri late instar larva
5490369 mountain pine beetle Dendroctonus ponderosae Blue stain associated with mountain pine beetle
5490375 mountain pine beetle Dendroctonus ponderosae Campground closed during activities (tree removal, insecticide spraying) related to mountain pine beetle management.
5490378 mountain pine beetle Dendroctonus ponderosae Campground closed during activities(tree removal, insecticide spraying) related to mountain pine beetle management
5490370 mountain pine beetle Dendroctonus ponderosae Pitch out of adult beetle
5490379 mountain pine beetle Dendroctonus ponderosae Transition area where lodgepole pine and ponderosa pine intersect and are both attacked by mountain pine beetle.
5488951 harlequin beetle Acrocinus longimanus Pair mounted in the C.P. Gillette Museum, Colorado State University
5490217 walnut twig beetle Pityophthorus juglandis Sachet containing lure (Compound X) attractive to walnut twig beetle
5445256 blister beetle Epicauta aspera Close-up of head
5443184 spruce beetle Dendroctonus rufipennis Interpretive sign related to spruce beetle with image that is not in true proportion. Photograph taken July 27, 2011
1455123 Dermestid beetles Cast skins of larvae
5480143 bark beetle Xylechinus montanus Declivity.
5480140 bark beetle Xylechinus montanus
5480134 ambrosia beetle Xyleborus intrusus Declivity.
5480135 ambrosia beetle Xyleborus intrusus
5480136 ambrosia beetle Xyleborus intrusus
5480131 bark beetle Scolytodes schwarzi
5480130 bark beetle Scolytodes schwarzi
5480152 bark beetle Pityokteines ornatus
5480125 small oak bark beetle Pseudopityophthorus minutissimus
5480127 small oak bark beetle Pseudopityophthorus minutissimus Declivity.
5480123 small oak bark beetle Pseudopityophthorus minutissimus
5480118 bark beetle Pityotrichus barbatus
5480115 bark beetle Pityokteines ornatus Declivity.
5480107 bark beetle Pityogenes knechteli
5480104 bark beetle Pityogenes knechteli
5480113 walnut twig beetle Pityophthorus juglandis
5480111 walnut twig beetle Pityophthorus juglandis Declivity.
5478667 ambrosia beetle Theoborus ricini
5478663 ambrosia beetle Theoborus ricini Declivity.
5478665 ambrosia beetle Theoborus ricini
5478030 bark beetle Dryoxylon onoharaensis Declivity.
5478031 bark beetle Dryoxylon onoharaensis
5478032 bark beetle Dryoxylon onoharaensis
5478668 bark beetle Trischidias atoma
5478637 fruit-tree pinhole borer Xyleborinus saxeseni
5478611 bark beetle Thysanoes fimbricornis Declivity.
5478602 large elm beetle Scolytus scolytus Declivity.
5478576 bark beetle Pseudothysanoes hopkinsi Declivity.
5478648 ambrosia beetle Xyloterinus politus
5478649 ambrosia beetle Xyloterinus politus
5478647 ambrosia beetle Xyloterinus politus Declivity.
5478642 granulate ambrosia beetle Xylosandrus crassiusculus Declivity.
5478644 granulate ambrosia beetle Xylosandrus crassiusculus
5478639 fruit-tree pinhole borer Xyleborinus saxeseni
5478636 fruit-tree pinhole borer Xyleborinus saxeseni Declivity.
5478638 fruit-tree pinhole borer Xyleborinus saxeseni
5478633 bark beetle Trypophloeus populi
5478628 ambrosia beetle Trypodendrum lineatum
5478626 ambrosia beetle Trypodendrum lineatum Declivity.
5478627 ambrosia beetle Trypodendrum lineatum
5478662 foureyed spruce bark beetle Polygraphus rufipennis
5478659 foureyed spruce bark beetle Polygraphus rufipennis Club.
5478660 foureyed spruce bark beetle Polygraphus rufipennis Declivity.
5478617 larger pine shoot beetle Tomicus piniperda Declivity.
5478618 larger pine shoot beetle Tomicus piniperda
5478656 bark beetle Stenoclyptus sulcatus
5478654 bark beetle Stenoclyptus sulcatus Declivity.
5478613 bark beetle Thysanoes fimbricornis
5478604 large elm beetle Scolytus scolytus
5478600 large elm beetle Scolytus scolytus
5478607 bark beetle Scolytogenes jalapae
5478605 bark beetle Scolytogenes jalapae Declivity.
5478598 bark beetle Scierus annectens
5478596 bark beetle Scierus annectens Declivity.
5478593 bark beetle Pycnarthrum hispidum
5478591 bark beetle Pycnarthrum hispidum Declivity.
5478578 bark beetle Pseudothysanoes hopkinsi
5478589 silver fir beetle Pseudohylesinus sericeus
5478587 silver fir beetle Pseudohylesinus sericeus Declivity.
5478585 silver fir beetle Pseudohylesinus sericeus
5478583 Monterey pine ips Pseudips mexicanus
5478581 Monterey pine ips Pseudips mexicanus Declivity.
5478582 Monterey pine ips Pseudips mexicanus
5478571 bark beetle Procryphalus mucronatus Declivity.
5478573 bark beetle Procryphalus mucronatus
5478567 ambrosia beetle Premnobius cavipennis
5478568 ambrosia beetle Premnobius cavipennis
5478566 ambrosia beetle Premnobius cavipennis Declivity.
5478322 bark beetle Pityoborus comatus Declivity.
5478323 bark beetle Pityoborus comatus
5478324 bark beetle Pityoborus comatus
5478317 bark beetle Phloeotribus lecontei Declivity.
5478319 bark beetle Phloeotribus lecontei
5477359 redwood bark beetle Phloeosinus sequoiae Declivity.
5477355 seed beetle Pagiocerus frontalis Declivity.
5477350 bark beetle Micracis swainei Club.
5477351 bark beetle Micracis swainei Declivity.
5478311 yellow-banded ambrosia beetle Monarthrum fasciatum Declivity.
5478301 bark beetle Lymantor decipiens Declivity.
5478307 bark beetle Micracisella nanula Declivity.
5477341 bark beetle Hypothenemus crudiae Declivity.
5477347 pine engraver Ips pini Declivity.
5477337 mango bark beetle Hypocryphalus mangiferae Declivity.
5477331 goldenhaired bark beetle Hylurgus ligniperda Declivity.
5478048 bark beetle Hylurgops rugipennis pinifex Declivity.
5478044 native elm bark beetle Hylurgopinus rufipes Declivity.
5478041 shrub bark beetle Hylocurus hirtellus Declivity.
5477326 clover root borer Hylastinus obscurus Declivity.
5477322 bark beetle Hylastes gracilis Declivity.
5477250 shot-hole borer of tea Euwallacea fornicatus Declivity.
5478299 bark beetle Dryocoetoides cristatus Declivity.
5477312 western balsam bark beetle Dryocoetes confusus Declivity.
5478292 bark beetle Dolurgus pumilus Declivity.
5478015 bark beetle Dendroterus texanus Declivity.
5477297 mountain pine beetle Dendroctonus ponderosae Declivity.
5478283 bark beetle Dendrocranulus knausi Declivity.
5477559 bark beetle Cryptocarenus seriatus Declivity.
5477562 bark beetle Crypturgus alutaceus Declivity.
5477555 bark beetle Cryphalus ruficollis Declivity.
5477547 ambrosia beetle Coptoborus pseudotenuis Declivity.
5477291 pitted ambrosia beetle Corthylus punctatissimus Declivity.
5477284 bark beetle Coccotrypes dactyliperda Declivity.
5477276 bark beetle Cnesinus strigicollis Declivity.
5477537 bark beetle Cnemonyx ficus Declivity.
5477273 bark beetle Chramesus hicoriae Declivity.
5477532 bark beetle Chaetophloeus hystrix Declivity.
5477527 bark beetle Carphoborus pinicolens Declivity.
5477522 bark beetle Carphobius arizonicus Declivity.
5477516 bark beetle Cactopinus desertus Declivity.
5477511 bark beetle Araptus hymenaeae Declivity.
5302066 bronze birch borer Agrilus anxius Exit hole (D-shaped, typical of Agrilus spp.)
5477506 Europian shot-hole borer Xyleborus dispar Declivity.
5477266 ambrosia beetle Ambrosiodmus lecontei Declivity.
5477262 alder bark beetle Alniphagus aspericollis Declivity.
5478312 yellow-banded ambrosia beetle Monarthrum fasciatum
5478313 yellow-banded ambrosia beetle Monarthrum fasciatum
5478308 bark beetle Micracisella nanula
5478309 bark beetle Micracisella nanula
5478302 bark beetle Lymantor decipiens
5478303 bark beetle Lymantor decipiens
5478091 bark beetle Liparthrum squamosum
5478050 bark beetle Hylurgops rugipennis pinifex
5478046 native elm bark beetle Hylurgopinus rufipes
5478042 shrub bark beetle Hylocurus hirtellus
5478039 shrub bark beetle Hylocurus hirtellus
5478037 bark beetle Hylesinus criddlei
5478036 bark beetle Hylesinus criddlei
5478026 bark beetle Dryocoetoides cristatus
5478296 bark beetle Dryocoetoides cristatus
5478294 bark beetle Dolurgus pumilus
5478289 bark beetle Dendroterus texanus
5478016 bark beetle Dendroterus texanus
5478284 bark beetle Dendrocranulus knausi
5478280 bark beetle Dendrocranulus schedli
5477360 redwood bark beetle Phloeosinus sequoiae
5477361 redwood bark beetle Phloeosinus sequoiae
5477357 seed beetle Pagiocerus frontalis
5477258 bark beetle Orthotomicus caelatus
5477255 bark beetle Orthotomicus caelatus
5477352 bark beetle Micracis swainei
5477353 bark beetle Micracis swainei
5477348 pine engraver Ips pini
5477345 pine engraver Ips pini
5477342 bark beetle Hypothenemus crudiae
5477343 bark beetle Hypothenemus crudiae
5477338 mango bark beetle Hypocryphalus mangiferae
5477335 mango bark beetle Hypocryphalus mangiferae
5477332 goldenhaired bark beetle Hylurgus ligniperda
5477333 goldenhaired bark beetle Hylurgus ligniperda
5477328 clover root borer Hylastinus obscurus
5477323 bark beetle Hylastes gracilis
5477317 western hemlock wood stainer Gnathotrichus sulcatus
5477318 western hemlock wood stainer Gnathotrichus sulcatus
5477251 shot-hole borer of tea Euwallacea fornicatus
5477252 shot-hole borer of tea Euwallacea fornicatus
5477314 western balsam bark beetle Dryocoetes confusus
5477305 western balsam bark beetle Dryocoetes confusus
5477303 bark beetle Dendrosinus bourreriae
5477298 mountain pine beetle Dendroctonus ponderosae
5477299 mountain pine beetle Dendroctonus ponderosae
5477564 bark beetle Crypturgus alutaceus
5477560 bark beetle Cryptocarenus seriatus
5477557 bark beetle Cryptocarenus seriatus
5477553 bark beetle Cryphalus ruficollis
5477292 pitted ambrosia beetle Corthylus punctatissimus
5477293 pitted ambrosia beetle Corthylus punctatissimus
5477549 ambrosia beetle Coptoborus pseudotenuis
5477548 ambrosia beetle Coptoborus pseudotenuis
5477288 lodgepole cone beetle Conophthorus ponderosae
5477287 lodgepole cone beetle Conophthorus ponderosae
5477282 bark beetle Coccotrypes dactyliperda
5477544 camphor shot borer Xylosandrus mutilatus
5477278 bark beetle Cnesinus strigicollis
5477277 bark beetle Cnesinus strigicollis
5477539 bark beetle Cnemonyx ficus
5477533 bark beetle Chaetophloeus hystrix
5477534 bark beetle Chaetophloeus hystrix
5477528 bark beetle Carphoborus pinicolens
5477529 bark beetle Carphoborus pinicolens
5477524 bark beetle Carphobius arizonicus
5477517 bark beetle Cactopinus desertus
5477518 bark beetle Cactopinus desertus
5477515 bark beetle Cactopinus desertus
5477513 bark beetle Araptus hymenaeae
5477509 Europian shot-hole borer Xyleborus dispar
5477268 ambrosia beetle Ambrosiodmus lecontei
5477263 alder bark beetle Alniphagus aspericollis
5477260 alder bark beetle Alniphagus aspericollis
5393530 Colorado plains soldier beetle Chauliognathus basalis Four pairs resting on flower in early morning.
1476073 rose chafer Macrodactylus subspinosus Mating pair
1243164 three-lined Lema beetle Lema trivittata Larvae feeding on Tomatillo leaf
5393483 banded ash borer Neoclytus caprea adult and emergence hole
5445196 imported willow leaf beetle Plagiodera versicolora
5445213 alfalfa weevil Hypera postica larval feeding injury to alfalfa terminal
5445370 click beetles Alaus spp. Adults of the 3 Alaus spp. known to be present in Colorado (l-r) - Alaus oculatus, A. melanops, A lusciosus
5024084 walnut twig beetle Pityophthorus juglandis Adult galleries and associated Geosmithia morbida infection in a ca. 10 cm. diameter branch.
1455128 mottled tortoise beetle Deloyala guttata
5406093 walnut twig beetle Pityophthorus juglandis External weeping noticeable around walnut twig beetle tunnels.
5445356 blister beetle Epicauta aspera
5445345 blister beetle Epicauta aspera
5445380 banded net-winged beetle Calopteron reticulatum
5445379 banded net-winged beetle Calopteron reticulatum Adults and pupal skins exposed from under board
5445300 rabbitbrush beetle Trirhabda nitidicollis late instar larva defecating
5445298 rabbitbrush beetle Trirhabda nitidicollis
5445294 walnut twig beetle Pityophthorus juglandis Host: black walnut Adults on penny showing relative to size
5445293 walnut twig beetle Pityophthorus juglandis Adults on penny showing relative size Host: black walnut
5445216 sunflower headclipping weevil Haplorhynchites aeneus Adult clipping sunflower stem at base of head. A gray sunflower seed weevil (Smicroniyx sordidus) is also in picture.
5445215 sunflower headclipping weevil Haplorhynchites aeneus Adult clipping sunflower stem at base of head. A gray sunflower seed weevil (Smicroniyx sordidus) is also in picture.
5445214 sunflower headclipping weevil Haplorhynchites aeneus Adult clipping sunflower stem at base of head. A gray sunflower seed weevil (Smicroniyx sordidus) is also in picture.
5445191 cherry curculio Anthonomus consors Fruit punctures made during oviposition
5445190 cherry curculio Anthonomus consors
5445187 cherry curculio Anthonomus consors late stage larvae exposed within seed pit
5445188 cherry curculio Anthonomus consors Late stage larvae exposed within seed pit
5445129 locust borer Megacyllene robiniae Sawdust piled at base of locust borer infested tree
5445339 nine-spotted lady beetle Coccinella novemnotata
5445340 nine-spotted lady beetle Coccinella novemnotata
5445378 banded net-winged beetle Calopteron reticulatum mating pair
5445377 banded net-winged beetle Calopteron reticulatum
5445290 blister beetle Epicauta stuarti
5445289 blister beetle Epicauta stuarti
5445278 blister beetle Epicauta stuarti
5445267 blister beetle Lytta stygica
5445171 asparagus beetle Crioceris asparagi
5445170 asparagus beetle Crioceris asparagi
5445212 alfalfa weevil Hypera postica Larval feeding injury to alfalfa terminal
5445195 imported willow leaf beetle Plagiodera versicolora Larvae and associated skeletonizing injury
5445193 imported willow leaf beetle Plagiodera versicolora
5445194 imported willow leaf beetle Plagiodera versicolora
5445192 imported willow leaf beetle Plagiodera versicolora
5445136 white pine weevil Pissodes strobi Terminal of blue spruce killed by white pine weevil
5445135 white pine weevil Pissodes strobi Terminals of blue spruce repeatedly attacked by white pine weevil
5445134 white pine weevil Pissodes strobi terminals of blue spruce repeatedly attacked by white pine weevil
5445132 locust borer Megacyllene robiniae Teneral adult within tunnel of black locust
5445130 locust borer Megacyllene robiniae Late instar larvae within tunnels of black locust
5445131 locust borer Megacyllene robiniae Teneral adults within tunnels of black locust
5443287 elm leaf beetle Xanthogaleruca luteola Pupae at base of infested elm
5443288 elm leaf beetle Xanthogaleruca luteola Pupae at base of infested elm
5443289 elm leaf beetle Xanthogaleruca luteola Skeletonizing damage produced by elm leaf beetle larvae
5443284 hairy rove beetle Creophilus maxillosus
5443285 hairy rove beetle Creophilus maxillosus On rabbit carrion
5443286 hairy rove beetle Creophilus maxillosus mating pair on rabbit carrion
5443270 European elm flea weevil Orchestes alni Larva exposed in leaf mine
5443271 European elm flea weevil Orchestes alni Larva exposed in leaf mine
5443272 European elm flea weevil Orchestes alni Pupa exposed in leaf mine
5443265 European elm flea weevil Orchestes alni Adult and associated shothole damage
5443266 European elm flea weevil Orchestes alni Adults and associated shothole damage
5443267 European elm flea weevil Orchestes alni Adults and leaf mine produced by larval stage
5443268 European elm flea weevil Orchestes alni
5443239 sumac flea beetle Blepharida rhois
5443221 checkered melon beetle Paranapiacaba tricincta
5443227 striped cucumber beetle Acalymma vittatum Larva tunneling of base of squash plant
5443228 striped cucumber beetle Acalymma vittatum Larval tunneling of base of winter squash
5443201 sculptured pine borer Chalcophora angulicollis
5443202 metalic wood-boring beetle Agrilus cyanescens
5443204 metalic wood-boring beetle Agrilus cyanescens
5443178 metallic wood-boring beetles Gyascutus planicosta obliteratus Adult resting on foliage. Photograph taken July 25, 2011 during which there was a localized mass emergence.
5443179 metallic wood-boring beetles Gyascutus planicosta obliteratus Adult in flight. Photograph taken July 25, 2011 during which there was a localized mass emergence.
5443180 spruce beetle Dendroctonus rufipennis Tree mortality along White River in Rio Blanco County. This area was near the epicenter of the massive outbreak of this insect in the late 1940s. Photograph taken July 27, 2011.
5443181 spruce beetle Dendroctonus rufipennis Tree mortality along White River in Rio Blanco County. This area was near the epicenter of the massive outbreak of this insect in the late 1940s. Photograph taken July 27, 2011
5443176 metallic wood-boring beetles Gyascutus planicosta obliteratus Adult resting on foliage. Photograph taken July 25, 2011 during which there was a localized mass emergence
5443177 metallic wood-boring beetles Gyascutus planicosta obliteratus Adult resting on foliage. Photograph taken July 25, 2011 during which there was a localized mass emergence.
1326070 cottonwood leaf beetle Chrysomela scripta Older instar larvae
5432743 cereal leaf beetle Oulema melanopus
1243072 black turfgrass ataenius Ataenius spretulus
1246037 poplar-and-willow borer Cryptorhynchus lapathi
1326204 bronze birch borer Agrilus anxius on Birch.
1326168 checkered beetle Generalist predator of insects under bark. Larva found under bark.
1326016 crucifer flea beetle Phyllotreta cruciferae Comparison of size with apple flea beetle, Haltica foliaceae
1243170 western corn rootworm Diabrotica virgifera virgifera Adult chewing cabbage leaf
1243175 striped cucumber beetle Acalymma vittatum Adults mass on squash leaf
1243174 striped cucumber beetle Acalymma vittatum Adults damaging squash seedling
1243081 bronze birch borer Agrilus anxius Larval tunnels on birch.
1243180 western corn rootworm Diabrotica virgifera virgifera Adults feeding on watermelon fruit. There is a single western corn rootworm in this picture with the others being striped cucumber beetle
5393452 fireflies Pyractomena spp. This firefly was found in a meadow near Steamboat Springs, Colorado. Photinus species are quite rare in that region
5393453 fireflies Pyractomena spp. Adults showing dorsal and ventral features. These fireflies were found in a meadow near Steamboat Springs, Colorado. Photinus species are quite rare in that region
1455125 black carpet beetle Attagenus unicolor
1455124 Dermestid beetles
1455129 mottled tortoise beetle Deloyala guttata
1455130 mottled tortoise beetle Deloyala guttata Adult and larva
1476126 weevil Magdalis spp.
5393584 Colorado plains soldier beetle Chauliognathus basalis
1476105 metalic wood-boring beetles Agrilus quercicola adult emerging from trunk
1476106 metalic wood-boring beetles Agrilus quercicola
1455131 mottled tortoise beetle Deloyala guttata
1455140 stag beetle Lucanus mazama
1243047 Colorado potato beetle Leptinotarsa decemlineata Pupa on potato.
1246069 elm leaf beetle Xanthogaleruca luteola Late stage
1243069 Western masked chafer Cyclocephala hirta
1243044 Colorado potato beetle Leptinotarsa decemlineata egg mass on potato.
1455040 poplar blackmine beetle Zeugophora scutellaris
1326079 sunflower headclipping weevil Haplorhynchites aeneus
1326080 sunflower beetle Zygogramma exclamationis
1326074 cottonwood leaf beetle Chrysomela scripta
1326077 sunflower headclipping weevil Haplorhynchites aeneus Typical damage by adult
1455077 lilac root weevil Otiorhynchus meridionalis Extensive defoliation
1455127 mottled tortoise beetle Deloyala guttata
1455159 blue spruce engraver Ips hunteri
1243117 carrot weevil Listronotus oregonensis Damage to carrot.
1243070 May-June beetles Phyllophaga spp.
1243179 striped cucumber beetle Acalymma vittatum Striped cucumber beetle and spotted cucumber beetle adults feeding on watermelon fruit
1243176 striped cucumber beetle Acalymma vittatum Adults mass on squash leaf
1455097 fireflies Photuris spp.
1243030 crucifer flea beetle Phyllotreta cruciferae Adults and associated damage on cabbage.
1243033 crucifer flea beetle Phyllotreta cruciferae Injury to seedling broccoli.
1243032 crucifer flea beetle Phyllotreta cruciferae Injury to seedling to broccoli.
1243038 tuber flea beetle Epitrix tuberis External symptoms of larval injury to potato.
1326188 Rocky Mountain billbug Sphenophorus cicatristriatus on bluegrass.
1246061 elm leaf beetle Xanthogaleruca luteola at egg hatch
1243178 striped cucumber beetle Acalymma vittatum Larvae in Cantaloupe rind
1326073 cottonwood leaf beetle Chrysomela scripta Older instar larvae
1246062 darkling beetle Eleodes suturalis
1243039 tuber flea beetle Epitrix tuberis Tuber tunneling by larvae in potato.
1416023 toadflax flower-eating beetle Brachypterolus pulicarius
1246073 elm leaf beetle Xanthogaleruca luteola Overwintered beetles in diapause coloration
1243046 Colorado potato beetle Leptinotarsa decemlineata Larva on potato.
1243082 bronze birch borer Agrilus anxius Larva on Birch.
1243031 crucifer flea beetle Phyllotreta cruciferae "Shothole" damage on chinese cabbage.
1455139 stag beetle Lucanus mazama
1246038 poplar-and-willow borer Cryptorhynchus lapathi
1326071 cottonwood leaf beetle Chrysomela scripta Older instar larvae and typical damage
1455093 black blister beetle Epicauta pensylvanica
1246070 stag beetle Lucanus mazama Male and female
1246066 jet-black stink bug Eleodes armata In defensive posture
1243171 western corn rootworm Diabrotica virgifera virgifera Comparison of western corn rootworm (left, center) and striped cucumber beetle (right)
1326021 white pine weevil Pissodes strobi Early stage wilting symptoms
1326075 cottonwood leaf beetle Chrysomela scripta Mating pair
1243043 Colorado potato beetle Leptinotarsa decemlineata Adult on potato.
1455079 lilac root weevil Otiorhynchus meridionalis Adult feeding damage
1243168 checkered melon beetle Paranapiacaba tricincta Adults massing on buffalo gourd fruit
1243169 western corn rootworm Diabrotica virgifera virgifera
1243071 dung beetle Aphodius omissus omissus
1243041 Colorado potato beetle Leptinotarsa decemlineata Larval damage to foliage to potato.
1243040 potato flea beetle Epitrix cucumeris Damage to skin of tomato fruit
1246065 elm leaf beetle Xanthogaleruca luteola
5393536 argus tortoise beetle Chelymorpha cassidea
1243091 fierce ground beetle Pasimachus depressus
1243068 Western masked chafer Cyclocephala hirta
1326060 blue spruce engraver Ips hunteri
1243010 tobacco flea beetle Epitrix hirtipennis Typical injury to eggplant foliage.
1455132 mottled tortoise beetle Deloyala guttata
1326059 blue spruce engraver Ips hunteri
1243090 convergent lady beetle Hippodamia convergens Larvae at egg hatch
1455099 fireflies Photuris spp.
1455100 fireflies or lightning bugs
1326076 cottonwood leaf beetle Chrysomela scripta Egg mass
1243042 Colorado potato beetle Leptinotarsa decemlineata Mating pair of adults on potato.
1326026 white pine weevil Pissodes strobi Damage to terminal
1326022 white pine weevil Pissodes strobi Early stage wilting symptoms on codominant terminals
5364210 red sunflower seed weevil Smicronyx fulvus Larva in a sunflower seed.
1326025 white pine weevil Pissodes strobi
1243037 potato flea beetle Epitrix cucumeris Leaf injury to potato.
1243173 striped cucumber beetle Acalymma vittatum Adults damaging squash seedling
1243048 false Japanese beetle Strigoderma arboricola False Japanese beetle adults massed on prickly poppy flowers
1455023 locust leafminer Odontota dorsalis
1326024 white pine weevil Pissodes strobi Damage to terminal
1326087 cherry curculio Anthonomus consors Adult feeding on fruit
1326078 sunflower headclipping weevil Haplorhynchites aeneus Adult on flower head
1325088 poplar borer Saperda calcarata frass expelled by tunneling borer
5393523 blister beetle Lytta stygica This is an early-appearing species.
5209060 billbugs Sphenophorus spp. Comparison of the two species for size difference. The bluegrass billbug (S. parvulus) is on the left; the Rocky Mountain billbug (S. cicastristriatus) on the right
1476104 poplar borer Saperda calcarata Sawdust frass expelled from tunnel
1476116 elm leaf beetle Xanthogaleruca luteola egg mass
1476117 elm leaf beetle Xanthogaleruca luteola egg mass
1476118 elm leaf beetle Xanthogaleruca luteola Newly hatched larvae, old egg mass and damage
1476119 elm leaf beetle Xanthogaleruca luteola late instar larva and frass
1476120 elm leaf beetle Xanthogaleruca luteola
1476121 elm leaf beetle Xanthogaleruca luteola larvae crawling on trunk to pupation sites
1476122 elm leaf beetle Xanthogaleruca luteola
1476123 elm leaf beetle Xanthogaleruca luteola
1476124 elm leaf beetle Xanthogaleruca luteola
1476125 poplar blackmine beetle Zeugophora scutellaris adult feeding injury
1476128 varied carpet beetle Anthrenus verbasci
5369795 sidewalk tiger beetle Cicindela punctulata Adult, green phase
5369793 sidewalk tiger beetle Cicindela punctulata Mating pair
5369862 powderpost beetles Trogoxylon spp. Fine “face powder” boring dust produced from tunneling ash log
5369874 flatheaded pine borer Phaenops gentilis A small series collected in Colorado showing range in coloration
5369792 sidewalk tiger beetle Cicindela punctulata Adults mating, brown and green phase
5369900 acorn and nut weevils Curculio spp. Adult. Photographed July 7, 2006
5369944 whitespotted sawyer Monochamus scutellatus Male and female that were mating on pile of recently cut lodgepole pine
5369877 metalic wood-boring beetles Buprestis (Cypriacis) spp. A small series collected in Colorado showing range in coloration, patterning
5369878 metalic wood-boring beetles Buprestis (Cypriacis) spp. Pinned specimen collected in Colorado
5369882 metalic wood-boring beetles Buprestis (Cypriacis) spp. Pinned specimen collected in Colorado
5369861 powderpost beetles Trogoxylon spp. Fine “face powder” boring dust produced from tunneling ash log.
5422180 pole borer Nerandra brunnea
5422146 checkered melon beetle Paranapiacaba tricincta adults on muskmelon leaves
5422141 checkered melon beetle Paranapiacaba tricincta Co-infestation of checkered melon beetle ( Paranapiacaba tricincta) and western corn rootworm ( Diabrotica virgifera virgifera) in squash blossom
5422142 checkered melon beetle Paranapiacaba tricincta Leaf injury to seedling muskmelon by adult checkered melon beetle
5422143 checkered melon beetle Paranapiacaba tricincta Leaf injury to muskmelon by adult checkered melon beetle
5422144 checkered melon beetle Paranapiacaba tricincta Leaf injury to muskmelon by adult checkered melon beetle
5422145 checkered melon beetle Paranapiacaba tricincta Seedling killed bu leaf injury produced by checkered melon beetle
5422140 checkered melon beetle Paranapiacaba tricincta Co-infestation of checkered melon beete ( Paranapiacaba tricinta) and spotted cucumber beetle (Diabroticaundecimpunctata) on buffalo gourd
5422269 European elm flea weevil Orchestes alni
5422153 common shore tiger beetle Cicindela repanda
5422154 common shore tiger beetle Cicindela repanda
5422157 punctured tiger beetle Cicindela punctulata punctulata head of larvae blocking burrow entrance
5422139 checkered melon beetle Paranapiacaba tricincta leaf injury by adult checkered melon beetle
5422179 tuber flea beetle Epitrix tuberis External symtoms of larval damage to potato
5422221 walnut twig beetle Pityophthorus juglandis emergence holes
5422220 walnut twig beetle Pityophthorus juglandis Adult walnut twig  beetle tunnel and surrounding canker produced by Geosmithia in southern California  walnut.
5422268 European elm flea weevil Orchestes alni Mating pair and shothole feeding on newly emergent foliage
5422265 European elm flea weevil Orchestes alni Shothole symptoms produced by adult feeding
5422263 European elm flea weevil Orchestes alni Leaf mining produced by larvae; shotholes by adults
5422192 convergent lady beetle Hippodamia convergens Teneral adult. Second in a 3 part series, taken one hour after the previous picture.
5422193 convergent lady beetle Hippodamia convergens Teneral adult. Third in a 3 part series, taken one hour after previous picture.
5422194 sevenspotted lady beetle Coccinella septempunctata Recently emerged adult next to pupal skin.
5422191 convergent lady beetle Hippodamia convergens Teneral adult. First in a 3 part series.
5422155 festive tiger beetle Cicindela scutellaris
5422156 festive tiger beetle Cicindela scutellaris
5422278 sevenspotted lady beetle Coccinella septempunctata larvae at egg hatch
5406092 walnut twig beetle Pityophthorus juglandis External weeping noticeable around walnut twig beetle tunnels.
5406087 walnut twig beetle Pityophthorus juglandis Branch cankers that have developed around twig beetle galleries. Associated with Thousand cankers disease.
5024025 long-horned beetle Arhopalus asperatus
5406059 walnut twig beetle Pityophthorus juglandis Pupae within trunk.
5406060 walnut twig beetle Pityophthorus juglandis Larvae and pupa. The geosmithia fungal associate is sporulating profusely around the pupal cells.
5406061 walnut twig beetle Pityophthorus juglandis Beetle gallery in Arizona wlanut. Callus tissue borders and confines this point of injury.
5406063 walnut twig beetle Pityophthorus juglandis External view of beetle gallery in Arizona walnut. Callus tissue borders and confines this point of injury.
5406058 walnut twig beetle Pityophthorus juglandis Adult beetles withini nuptial chamber.
5406073 walnut twig beetle Pityophthorus juglandis Exit wounds made by adults.
5406084 walnut twig beetle Pityophthorus juglandis Exit wounds made by adults and larval tunneling in a branch.
5406056 walnut twig beetle Pityophthorus juglandis Branch with dieback associated with infestation of walnut twig beetle in Arizona walnut. Associated with Thousand cankers disease.
5406051 walnut twig beetle Pityophthorus juglandis Teneral adults. A Geosmithia sp.fungus is sporulating profusely in the pupal chambers and cover the beetles.
5406055 walnut twig beetle Pityophthorus juglandis Twig dieback associated with infestation of walnut twig beetle in Arizona walnut. Associated with Thousand cankers disease.
5406040 walnut twig beetle Pityophthorus juglandis Last instar larva. Adjacent is a pupal cell with sporulating Geosmithia fungus.
5393105 striped cucumber beetle Acalymma vittatum Pumpkin plants infested with the Striped cucumber beetle, Acalymma vittatum.
5393104 striped cucumber beetle Acalymma vittatum Pumpkin plants infested with the Striped cucumber beetle, Acalymma vittatum.
5393102 striped cucumber beetle Acalymma vittatum Pumpkin plants infested with the Striped cucumber beetle, Acalymma vittatum.
5393103 striped cucumber beetle Acalymma vittatum Pumpkin plants infested with the Striped cucumber beetle, Acalymma vittatum.
5389475 Mexican bean beetle Epilachna varivestis A dry bean leaf infested with larvae of the Mexican bean beetle.
5389474 Mexican bean beetle Epilachna varivestis A dry bean leaf infested with larvae of the Mexican bean beetle.
5024085 walnut twig beetle Pityophthorus juglandis Adult gallery and associated Geosmithia sp. infection.
5024089 walnut twig beetle Pityophthorus juglandis adult gallery and associated Geosmithia sp. infection
5393598 clover leaf weevil Hypera punctata
5393597 bluegrass billbug Sphenophorus parvulus
5393596 bronze birch borer Agrilus anxius Exit hole in bark
5393592 Colorado plains soldier beetle Chauliognathus basalis
5393590 European elm flea weevil Orchestes alni Shothole feeding injury produced by adults
5393589 mottled tortoise beetle Deloyala guttata Larva with fecal shield
5393585 black blister beetle Epicauta pensylvanica Male black blister beetle pursuing female for mating
5393586 black blister beetle Epicauta pensylvanica
5393583 Colorado plains soldier beetle Chauliognathus basalis Massed adults on rabbitbrush flowers
5393581 Colorado plains soldier beetle Chauliognathus basalis Eggs laid among rabbitbrush flower head resting on soil
5393582 Colorado plains soldier beetle Chauliognathus basalis Mating pairs resting on flower head in early morning
5393579 argus tortoise beetle Chelymorpha cassidea Adult being attacked by Crematogaster sp. ants
5393578 hollyhock weevil Rhopalapion longirostre The female (right) is feeding in the developing seed pod.
5393577 hollyhock weevil Rhopalapion longirostre Shothole foliage injury symptom
5393576 sumac flea beetle Blepharida rhois
5393574 sumac flea beetle Blepharida rhois Late instar larva.  A fecal shield is present behind the head.
5393575 sumac flea beetle Blepharida rhois Late instar larvae.  A fecal shield is present behind the head.
5393573 sumac flea beetle Blepharida rhois Late instar larvae.  A fecal shield is present behind the head.
5393571 Colorado potato beetle Leptinotarsa decemlineata Mating pair of adults on buffalobur nightshade
5393559 flea beetle Kuschelina barberi
5393547 flea beetle Kuschelina barberi
5393524 blister beetle Lytta stygica This is an early-appearing species. Photograph taken April 14, 2009
5393458 two-spotted melyrid Collops bipunctatus
5393451 splendid tiger beetle Cicindela splendida
5393526 clown beetle Eleodes hispilabris Adult, Exposed under log next to small rodent skull
5393507 mountain pine beetle Dendroctonus ponderosae Adult killed by pitch out
5393505 mountain pine beetle Dendroctonus ponderosae Pitch tubes on Scots pine
5393504 hollyhock weevil Rhopalapion longirostre infested seed pod
5393503 mountain pine beetle Dendroctonus ponderosae Adult on penny to show size
5393502 Mediterranean tamarisk beetle Diorhabda elongata Defoliation produced by larval feeding
5393501 Mediterranean tamarisk beetle Diorhabda elongata Mating pair of adults
5393499 Mediterranean tamarisk beetle Diorhabda elongata larva
5393500 Mediterranean tamarisk beetle Diorhabda elongata larva
5393498 Mediterranean tamarisk beetle Diorhabda elongata larva just after molt
5393497 Mediterranean tamarisk beetle Diorhabda elongata Late instar larva next to a small egg mass
5393493 hollyhock weevil Rhopalapion longirostre larva and infested seeds
5393492 mountain pine beetle Dendroctonus ponderosae adult
5393491 large lady beetle Anatis lecontei Adult
5393484 banded ash borer Neoclytus caprea Adult
5393482 Mexican bean beetle Epilachna varivestis
5393481 banded ash borer Neoclytus caprea Adult
5393477 potato flea beetle Epitrix cucumeris typical shothole feeding wounds to a tomato leaf
5393472 Mexican bean beetle Epilachna varivestis Larva
5393471 Mexican bean beetle Epilachna varivestis
5393466 cactus longhorn beetle Moneilema armatum Adult
5361548 bark beetles Interesting textures created by bark beetles and wood borers under the bark of a log in Rocky Mountain National Park.
5382063 European elm flea weevil Orchestes alni Larval leafmine  
5382186 walnut twig beetle Pityophthorus juglandis Egg galleries produced under bark of large branch.  
5382187 walnut twig beetle Pityophthorus juglandis Adults, including teneral adult, exposed from under bark.  
5382183 walnut twig beetle Pityophthorus juglandis Extensive galleries produced in bark of large branch.  
5382184 walnut twig beetle Pityophthorus juglandis Exit holes.  
5382179 banded elm bark beetle Scolytus schevyrewi Last instar larvae and pupa exposed from under bark.  
5382178 banded elm bark beetle Scolytus schevyrewi Pupa exposed from pupal chamber under bark.  
5382180 banded elm bark beetle Scolytus schevyrewi Pupae in chambers under bark.  
5382181 banded elm bark beetle Scolytus schevyrewi Late stage larva at end of tunnel.  
5382173 banded elm bark beetle Scolytus schevyrewi Dead adult in gallery with larval tunneling being initiated.  
5382175 banded elm bark beetle Scolytus schevyrewi Adult at entrance of gallery  
5382176 banded elm bark beetle Scolytus schevyrewi Pair mating at entrance of gallery.  
5382177 banded elm bark beetle Scolytus schevyrewi Last instar larvae and pupae exposed from under bark.  
5382172 mountain pine beetle Dendroctonus ponderosae Female in gallery with eggs  
5382167 mountain pine beetle Dendroctonus ponderosae Fresh pitch tubes  
5382168 mountain pine beetle Dendroctonus ponderosae Adult excavating tunnel.  Although this tree is still producing pitch, it has been heavily attacked by mountain pine beetle, and this adult beetle is excavating a larval gallery, treading the oozing pitch.  
5382169 mountain pine beetle Dendroctonus ponderosae Adult excavating tunnel.  Although this tree is still producing pitch, it has been heavily attacked by mountain pine beetle, and this adult beetle is excavating a larval gallery, treading the oozing pitch.  
5382171 mountain pine beetle Dendroctonus ponderosae Adult killed in “pitch-out” of ponderosa pine  
5382162 mountain pine beetle Dendroctonus ponderosae Female in gallery with eggs  
5382161 cherry curculio Anthonomus consors Close-up of adult  
5382155 striped cucumber beetle Acalymma vittatum Beetle chewing injury by adult striped cucumber beetle.  
5382131 walnut twig beetle Pityophthorus juglandis Flagging of lower shaded branches infested with walnut twig beetle.  
5382129 scarab beetle Phyllophaga falsa Adult feeding injury to pinyon foliage.  Photo taken August 19, 2008  
5382126 scarab beetle Phyllophaga falsa Adults piled on ground following massive flight in mid-August, 2008  
5382127 scarab beetle Phyllophaga falsa Adults piled on ground following massive flight in mid-August, 2008  
5382128 scarab beetle Phyllophaga falsa Adult tunneling around base of pinyon following emergence flights.  
5382124 pole borer Neandra brunnea Late instar larva  
5382115 sidewalk tiger beetle Cicindela punctulata Tunnel openings produced by late instar larvae.  Photograph taken June 26, 2008 in morning following light evening rain shower, showing recent activity around burrow entrances.  
5382112 sidewalk tiger beetle Cicindela punctulata Late instar larva pulled from tunnel July 2, 2008  
5382114 sidewalk tiger beetle Cicindela punctulata Tunnel openings produced by late instar larvae.  Photograph taken June 26, 2008 in morning following light evening rain shower, showing recent activity around burrow entrances.  
5382113 sidewalk tiger beetle Cicindela punctulata Front view of head.  
5382110 Virginia metallic tiger beetle Megacephala virginica Photographed  July 12, 2006  
5382101 flatheaded borer Poecilonota thureura Stacked pile of males attempting to mate with female.  
5382098 flatheaded borer Poecilonota thureura Adult observed on willow bark, June 12, 2008.   
5382099 flatheaded borer Poecilonota thureura Adult observed on willow bark, June 12, 2008.   
5382091 lesser grain borer Rhyzopertha dominica Grain heavily infested with lesser grain borer that was used to stuff teddy bear.  
5382065 poplar-and-willow borer Cryptorhynchus lapathi Mating pair.  Photograph taken September 3.  
5382060 clown beetle Eleodes hispilabris Pair of adults feeding on a road killed grasshopper.  
5382061 clown beetle Eleodes hispilabris Adult feeding on a road killed lizard.  
5382058 clown beetle Eleodes hispilabris Adult with abdomen raised in defensive posture.  
5382045 cedar bark beetles Phloeosinus spp. Twig die-back from maturation feeding by adult cedar bark beetles.  
5382042 cedar bark beetles Phloeosinus spp. Twig die-back from maturation feeding by adult cedar bark beetles.  
5382043 cedar bark beetles Phloeosinus spp. Twig die-back from maturation feeding by adult cedar bark beetle.  The opening to the feeding site is at the center of the picture.  
5382044 cedar bark beetles Phloeosinus spp. Twig die-back from maturation feeding by adult cedar bark beetle.  The area of the feeding site has been cut away and exposed.  
5382036 clown beetle Eleodes hispilabris Adult feeding on a road killed cricket.  Another darkling beetle, possibly Eleodes fusiformis, is next to it, also feeding.  
5382032 walnut twig beetle Pityophthorus juglandis Boring dust at entrance of gallery.   
5305006 ground beetle Euryderus grossus Adult. One of the few ground beetles that regularly climbs foliage.
5382111 sidewalk tiger beetle Cicindela punctulata
5382057 clown beetle Eleodes hispilabris
5210069 Colorado plains soldier beetle Chauliognathus basalis
5369731 blister neetle Zonitis sayi
5304089 palestriped flea beetle Systena blanda Damage to ragweed leaf
5369879 flatheaded cone borer Chrysophana placida A small series collected in Colorado showing range in coloration, patterning
5369881 green metalic wood borer Buprestis confluenta Pinned specimen collected in Colorado
5369876 flatheaded pine borer Phaenops gentilis Typical green form adult
5369875 flatheaded pine borer Phaenops gentilis Typical green form adult
5369798 large grassland tiger beetle Cicindela obsoleta Adult
5369797 beautiful tiger beetle Cicindela pulchra Adult
5369783 ornate checkered beetle Trichodes ornatus Adult
5369784 ornate checkered beetle Trichodes ornatus Adult
5369890 hollyhock weevil Rhopalapion longirostre Two males and a female (longer proboscis)
5369824 striped cucumber beetle Acalymma vittatum Injury to flower petals of cosmos by adult striped cucumber beetles
5369796 sidewalk tiger beetle Cicindela punctulata Adult aggregation near edge of small pool.
5369794 sidewalk tiger beetle Cicindela punctulata Mating pair joined by a second male
5369791 sidewalk tiger beetle Cicindela punctulata Adult, brown phase
5369751 tobacco flea beetle Epitrix hirtipennis Adult chewing injuries to eggplant fruit and calyx
5369742 Colorado potato beetle Leptinotarsa decemlineata Adult
5369735 spotted cucumber beetle Diabrotica undecimpunctata howardi Adult chewing injuries to eggplant fruit
5369734 spotted cucumber beetle Diabrotica undecimpunctata howardi Adult chewing injuries to snap bean pod
5364255 fourteen-spotted lady beetle Propylea quatuordecimpunctata Adult fourteen-spotted lady beetles (also known as "P-14 lady beetles," Propylea quatuordecimpunctata), predators of aphids.
5364252 lady beetles Stethorus spp. Pupa and adult of a black Stethorus sp. lady beetle, a predator (biological control agent) of mites  in cropping systems.
5360033 alfalfa weevil Hypera postica Larvae of the alfalfa weevil (Hypera postica).
5361035 alfalfa weevil Hypera postica Larva of the alfalfa weevil (Hypera postica).
5361034 alfalfa weevil Hypera postica Larva of the alfalfa weevil (Hypera postica).
5364203 sunflower beetle Zygogramma exclamationis Mating pair of sunflower beetles, Zygogramma exclamationis.
5364201 red sunflower seed weevil Smicronyx fulvus Adult red sunflower seed weevil (Smicronyx fulvus).
5364197 carrot beetle Tomarus gibbosus Adult of the carrot beetle, Ligyrus (Bothynus) gibbosus.
5364574 May-June beetles Phyllophaga spp. White grub (Phyllophaga sp.) on sunflower roots.
5361033 alfalfa weevil Hypera postica Damage to field plots of alfalfa (the squares visible in the middle distance), caused by the alfalfa weevil (Hypera postica).
5360032 alfalfa weevil Hypera postica Adult alfalfa weevil (Hypera postica).
5360027 sunflower beetle Zygogramma exclamationis Two adults and one larva of the sunflower beetle (Zygogramma exclamationis).
5364119 tuber flea beetle Epitrix tuberis Damage to a potato caused by the tuber flea beetle (Epitrix tuberis).
5364253 eye-spotted lady beetle Anatis mali The adult of the eye-spotted lady beetle (Anatis mali).
5365932 sunflower root weevil Baris strenua A sunflower (Helianthus spp.) stem showing damage caused by  the sunflower stem weevil (Baris strenua) in the field.
5365880 Colorado potato beetle Leptinotarsa decemlineata Larvae of Colorado potato beetle (Leptinotarsa decemlineata) on a potato plant.
5364249 convergent lady beetle Hippodamia convergens Recently molted convergent lady beetle (Hippodamia convergens), with pupal skins nearby.
5364248 lady beetle Lady beetle pupa.
5364120 western black flea beetle Phyllotreta pusilla Western black flea beetle (Phyllotreta pusilla) adults and the damage they can cause.
5360036 sunflower headclipping weevil Haplorhynchites aeneus Adult sunflower headclipper weevil (Haplorhynchites aeneus).
5364500 flea beetles Chaetocnema spp. Damage to chinese cabbage due to flea beetles.
5364116 three-lined Lema beetle Lema trivittata Adult threelined potato beetle (Lema daturaphila, formerly known as Lema trilineata) on a potato leaf.
5364117 three-lined Lema beetle Lema trivittata Egg mass of the threelined potato beetle (Lema daturaphila, formerly known as Lema trilineata) on a tomatillo leaf.
5364118 three-lined Lema beetle Lema trivittata Mass of larvae of the threelined potato beetle (Lema daturaphila, formerly known as Lema trilineata).
5364114 Colorado potato beetle Leptinotarsa decemlineata Egg mass of the Colorado potato beetle (Leptinotarsa decemlineata).
5357327 Colorado potato beetle Leptinotarsa decemlineata A potato plant infested with Colorado potato beetles Leptinotarsa decemlineata in the field.
5357325 Colorado potato beetle Leptinotarsa decemlineata A potato plant infested with Colorado potato beetles Leptinotarsa decemlineata in the field.
5357326 Colorado potato beetle Leptinotarsa decemlineata A potato plant infested with Colorado potato beetles Leptinotarsa decemlineata in the field.
5357324 Colorado potato beetle Leptinotarsa decemlineata A potato plant infested with Colorado potato beetles Leptinotarsa decemlineata in the field.
5357322 Colorado potato beetle Leptinotarsa decemlineata A potato plant infested with Colorado potato beetles Leptinotarsa decemlineata in the field.
5357323 Colorado potato beetle Leptinotarsa decemlineata A potato plant infested with Colorado potato beetles Leptinotarsa decemlineata in the field.
5362864 Colorado potato beetle Leptinotarsa decemlineata Eggs of the Colorado potato beetle (Leptinotarsa decemlineata) on the underside of a black nightshade leaf (Solanum nigrum).
5357321 Colorado potato beetle Leptinotarsa decemlineata Colorado potato beetles (Leptinotarsa decemlineata) on a volunteer potato plant.
5361225 lady beetle Adult lady beetle, a biological control agent for insect pests.
5361227 lady beetle Lady beetle larva, a biological control agent for insect pests.
5362504 Colorado potato beetle Leptinotarsa decemlineata Colorado potato beetle (Leptinotarsa decemlineata) and damage on a volunteer potato plant growing in a field of corn.
5360031 palestriped flea beetle Systena blanda Adult pale-striped flea beetle (Systena blanda) on a dry bean leaf.
5359222 palestriped flea beetle Systena blanda Pale-striped flea beetle (Systena blanda) on a dry bean leaf.
5365610 western corn rootworm Diabrotica virgifera virgifera Adult western corn rootworm beetles (Diabrotica virgifera virgifera) on the leaf of a dry bean plant - male on the left, female on the right.
5364017 Mexican bean beetle Epilachna varivestis
5364014 flea beetles Aphthona spp. A flea beetle on the leaf of an infested common bean plant.
1481062 bean leaf beetle Cerotoma ruficornis
1481139 alfalfa weevil Hypera postica
1481121 sunflower root weevil Baris strenua
1481061 maize weevil Sitophilus zeamais damage to ear of improved variety vs native, Honduras
1481004 sunflower stem weevil Cylindrocopturus adspersus tunnels in stems of sunflower
1481118 sunflower stem weevil Cylindrocopturus adspersus
1481119 sunflower stem weevil Cylindrocopturus adspersus
1481098 red sunflower seed weevil Smicronyx fulvus
1481097 gray sunflower seed weevil Smicronyx sordidus
1481122 scarabs or scarab beetles
1481094 solider beetles
1481108 seed weevils Smicronyx spp. sunflower seed weevil in seed
1481044 convergent lady beetle Hippodamia convergens aphid predator
1481048 convergent lady beetle Hippodamia convergens aphid predator
1481162 convergent lady beetle Hippodamia convergens
1481161 convergent lady beetle Hippodamia convergens feeding on greenbug in wheat
1481126 western corn rootworm Diabrotica virgifera virgifera
1481155 western corn rootworm Diabrotica virgifera virgifera
1481175 western corn rootworm Diabrotica virgifera virgifera
1481113 western corn rootworm Diabrotica virgifera virgifera
1481133 palestriped flea beetle Systena blanda on dry bean in Colorado
1481115 sunflower beetle Zygogramma exclamationis
1481117 sunflower beetle Zygogramma exclamationis
1481130 Mexican bean beetle Epilachna varivestis on dry bean in Colorado
1481021 sevenspotted lady beetle Coccinella septempunctata imported aphid predator
1481055 spotted lady beetle Coleomegilla maculata feeding on eggs of Spodoptera frugiperda
1481042 fourteen-spotted lady beetle Propylea quatuordecimpunctata imported aphid predator
1481153 lady beetles Stethorus spp. on corn in Colorado, probably S. punctum
1481154 lady beetles Stethorus spp. on corn in Colorado, probably S. punctum
1481138 leaf eating lady beetles Epilachna spp. on weed in Honduras
1481080 leaf eating lady beetles Epilachna spp. on dry bean in Honduras
1481022 ladybird beetle Scymnus frontalis imported aphid predator
1481047 variegated lady beetle Hippodamia variegata imported aphid predator
1481028 variegated lady beetle Hippodamia variegata imported aphid predator
1481019 sap beetle Feeding damage on drying corn ears
1481123 spotted cucumber beetle Diabrotica undecimpunctata howardi
1481166 corn flea beetle Chaetocnema pulicaria
1481116 sunflower headclipping weevil Haplorhynchites aeneus
1481053 bean pod weevil Apion godmani pest of dry bean in Mexico and Central America
1481132 bean pod weevil Apion godmani Larva and pupa; pest of dry bean in Mexico and Central America
1481106 soybean stem borer Dectes texanus
1476075 jewej scarab Chrysina spp. Adult
5210050 darkling beetle Bothrotes plumbeus
5210051 darkling beetle Bothrotes plumbeus
5304094 alfalfa weevil Hypera postica
5304095 alfalfa weevil Hypera postica
5305022 cherry curculio Anthonomus consors
5211003 hide beetle Omorgus suberosus Adult feeding on fresh scat (probably coyote)
5211004 hide beetle Omorgus suberosus Adult feeding on fresh scat (probably coyote)
5304047 long-horned beetle Crossidius discoideus Adult feeding at rabbitbrush flowers
5304048 long-horned beetle Crossidius discoideus Adult feeding at rabbitbrush flowers
5304066 cactus longhorn beetle Moneilema armatum
5305031 green iridescent weevil Haplorhynchites eximius
5305032 green iridescent weevil Haplorhynchites eximius
5304099 spotted cucumber beetle Diabrotica undecimpunctata howardi
5305020 blister beetle Nemognatha nigripennis
5305021 blister beetle Nemognatha nigripennis
5305023 blister beetle Nemognatha lurida
5304045 blister beetle Epicauta stuarti
5304046 blister beetle Epicauta stuarti
5305019 blister beetle Lytta biguttata
5305016 apple flea beetle Altica foliaceae Adult with purplish coloration
5305027 sunflower beetle Zygogramma exclamationis
5305028 sunflower beetle Zygogramma exclamationis
5305029 sunflower beetle Zygogramma exclamationis
5305030 sunflower beetle Zygogramma exclamationis
5305018 leaf beetle Zygogramma conjuncta
5305024 leaf beetle Zygogramma conjuncta
5305025 leaf beetle Zygogramma conjuncta
5305009 clerid beetle Enoclerus zonatus One of the largest clerid beetles. Found on yucca and shrubs in shortgrass prairie areas of eastern Colorado
5305010 clerid beetle Enoclerus zonatus One of the largest clerid beetles. Found on yucca and shrubs in shortgrass prairie areas of eastern Colorado
5304087 palestriped flea beetle Systena blanda Damage to leaf lettuce
5304088 palestriped flea beetle Systena blanda Damage to leaf lettuce
5304090 palestriped flea beetle Systena blanda Damage to leaf lettuce
5304075 apple flea beetle Altica foliaceae Adult showing metallic purplish coloration
5304076 apple flea beetle Altica foliaceae Adults and larva
5304077 apple flea beetle Altica foliaceae Normal green phase adult on primrose flower petal
5304078 apple flea beetle Altica foliaceae Adults of varying coloration
5304072 musk thistle head weevil Rhinocyllus conicus
5304073 musk thistle head weevil Rhinocyllus conicus Fecal plugs at oviposition sites
5304091 strawberry root weevil Otiorhynchus ovatus
5304092 strawberry root weevil Otiorhynchus ovatus
5303027 black vine weevil Otiorhynchus sulcatus
5303006 red turpentine beetle Dendroctonus valens
5303007 red turpentine beetle Dendroctonus valens
5303092 mountain pine beetle Dendroctonus ponderosae Recently killed and fading lodgepole pine. Rabbit Ears’ Pass, Routt County, Colorado. September 3, 2007
5303093 mountain pine beetle Dendroctonus ponderosae Recently killed and fading lodgepole pine. Rabbit Ears’ Pass, Routt County, Colorado. September 3, 2007
5303094 mountain pine beetle Dendroctonus ponderosae Recently killed and fading lodgepole pine. Rabbit Ears’ Pass, Routt County, Colorado. September 3, 2007
5303095 mountain pine beetle Dendroctonus ponderosae Recently killed and fading lodgepole pine. Rabbit Ears’ Pass, Routt County, Colorado. September 3, 2007
5303098 mountain pine beetle Dendroctonus ponderosae Fresh pitch tubes produced within 6 weeks. Rabbit Ears’ Pass, Routt County, Colorado. September 3, 2007
5303100 mountain pine beetle Dendroctonus ponderosae Old pitch tubes produced previous year. Rabbit Ears’ Pass, Routt County, Colorado. September 3, 2007
5304004 dark flower scarab Euphoria sepulcralis
5303085 hairy rove beetle Creophilus maxillosus
5303031 checkered melon beetle Paranapiacaba tricincta Beetles massing on foliage of native buffalogourd
5303047 western corn rootworm Diabrotica virgifera virgifera
5303049 western corn rootworm Diabrotica virgifera virgifera Adults in pumpkin flower. A Xenoglossa sp. digger bee is also in the flower
5303026 checkered melon beetle Paranapiacaba tricincta Adults massed on sunflower, a common adult host
5303034 Mexican bean beetle Epilachna varivestis
5303035 Mexican bean beetle Epilachna varivestis
5304055 hide beetles Dermestes spp.
5304056 hide beetles Dermestes spp.
5303046 spotted cucumber beetle Diabrotica undecimpunctata howardi Adults feeding on pumpkin flower
5303018 striped cucumber beetle Acalymma vittatum Extensive larvae tunneling at plant base producing plant collapse
5303019 striped cucumber beetle Acalymma vittatum Extensive larvae tunneling at plant base producing plant collapse
5303020 striped cucumber beetle Acalymma vittatum External symptoms of larval tunneling at crown of plant
5303022 striped cucumber beetle Acalymma vittatum External symptoms of larval tunneling at plant crown and adult scarring of vine
5303023 striped cucumber beetle Acalymma vittatum Adult scarring of vine
5303024 striped cucumber beetle Acalymma vittatum Adult scarring of fruit skin
5303025 striped cucumber beetle Acalymma vittatum Adult scarring of fruit skin
5303042 elm leaf beetle Xanthogaleruca luteola Extensive foliage injury by larvae
5303044 elm leaf beetle Xanthogaleruca luteola Extensive foliage injury by larvae
5303048 striped cucumber beetle Acalymma vittatum Mating pair
5304038 striped cucumber beetle Acalymma vittatum Extensive damage to seedling plants
5303072 poplar borer Saperda calcarata Full grown larvae
5303073 poplar borer Saperda calcarata Full grown larvae
5303003 hairy pine borer Tragosoma depsarium
5302075 cow path tiger beetle Cicindela purpurea cimarrona
5302076 cow path tiger beetle Cicindela purpurea cimarrona
5302083 sunflower headclipping weevil Haplorhynchites aeneus
5302087 elm leaf beetle Xanthogaleruca luteola Summer adult
5302091 blister beetle Gnathium minimum This is one of the smallest blister beetles found in Colorado
5302092 blister beetle Gnathium minimum This is one of the smallest blister beetles found in Colorado
5302096 blister beetle Epicauta valida Adult feedings on leaf fragment
5302093 diurnal firefly Ellychnia corrusca This is an early season species
5302094 diurnal firefly Ellychnia corrusca This is an early season species
5302089 firefly Pyropyga minuta this is a common species in eastern Colorado yards/gardens and is does not produce light
5302090 firefly Pyropyga minuta Adult this is a common species in eastern Colorado yards/gardens and is does not produce light
5302079 leaf beetle Zygogramma disrupta
5302070 rabbitbrush beetle Trirhabda nitidicollis
5302071 rabbitbrush beetle Trirhabda nitidicollis
5302095 crucifer flea beetle Phyllotreta cruciferae Severe injury to Chinese cabbage
5302061 dark flower scarab Euphoria sepulcralis
5302062 dark flower scarab Euphoria sepulcralis
1490007 false Japanese beetle Strigoderma arboricola Adult on potato leaf
5083092 lesser knapweed flower weevil Larinus minutus from recently established population.
1490006 sunflower beetle Zygogramma exclamationis
5209048 hide beetle Omorgus suberosus
5210070 margined leatherwing Chauliognathus marginatus
5209049 scarab beetle Phyllophaga lanceolata Adult feeding. This is a an unusual species of Phyllophaga found in the shortgrass prairie. It is day active and flightless.
5209050 scarab beetle Phyllophaga lanceolata Adult female. This is a an unusual species of Phyllophaga found in the shortgrass prairie. It is day active and flightless.
5210039 checkered melon beetle Paranapiacaba tricincta Adults feeding on melon plant
5210040 checkered melon beetle Paranapiacaba tricincta
5210041 checkered melon beetle Paranapiacaba tricincta Adults feeding on melon plant
5210042 checkered melon beetle Paranapiacaba tricincta Adults feeding on melon plant
5211013 leaf beetle Zygogramma heterothecae
5209090 blister beetle Linsleya convexa
5209091 blister beetle Linsleya convexa Adult feeding
5209092 blister beetle Lytta biguttata
5209093 blister beetle Lytta biguttata
5209094 blister beetle Nemognatha cribraria
5210072 blue-margined ground beetle Pasimachus elongatus
5210073 blue-margined ground beetle Pasimachus elongatus close up of head and mandibles
5211005 ground beetle Pasimachus californicus Mating pair of adults. The female has a masticated cutworm in her jaws.
5211006 ground beetle Pasimachus californicus Mating pair of adults. The female has a masticated cutworm in her jaws.
5211008 ground beetle Pasimachus californicus Mating pair of adults. The female has a masticated cutworm in her jaws.
5209086 eight-spotted longhorn Typocerus octonotatus
5209088 flower longhorn Typocerus serraticornis
5209089 flower longhorn Typocerus serraticornis
1476070 redheaded ash borer Neoclytus acuminatus Adult
1476072 blister beetles Meloe spp. Adult
5211015 blister beetle Epicauta parvula
5211016 blister beetle Epicauta parvula
5211017 blister beetle Epicauta parvula
5210071 sevenspotted lady beetle Coccinella septempunctata Note unusual spotting (extra spot on one wing cover)
5209075 apple flea beetle Altica foliaceae Larva and associated feeding injury
5210019 apple flea beetle Altica foliaceae Larvae and associated feeding injury
5210021 apple flea beetle Altica foliaceae
5210001 long-horned beetle Enaphalodes hispicornis
5209072 cactus longhorn beetle Moneilema annulatum
5209068 cream edged tiger beetle Cicindela circumpicta
5209069 cream edged tiger beetle Cicindela circumpicta
5210045 crimson salt flat tiger beetle Cicindela fulgida
5210046 crimson salt flat tiger beetle Cicindela fulgida
5209067 sidewalk tiger beetle Cicindela punctulata
5210002 murky ground beetle Harpalus caliginosus
5211009 dung beetle Canthon imitator Pair of adults with dung ball. The larger female is pushing and the smaller male is riding on the ball.
5211010 dung beetle Canthon imitator Pair of adults with dung ball. The larger female is pushing and the smaller male is riding on the ball.
5211011 dung beetle Canthon imitator Pair of adults with dung ball. The larger female is pushing and the smaller male is riding on the ball.
5211012 dung beetle Canthon imitator Pair of adults with dung ball. The larger female is pushing and the smaller male is riding on the ball.
5210065 Soft-winged flower beetle Amecocerus senilis Adults massed in spent flower
5210030 darkling beetle Eleodes suturalis
5210064 darkling beetle Eleodes suturalis Adult in defensive posture
5210035 plains false wireworm Eleodes opacus
5210038 plains false wireworm Eleodes opacus
5210028 darkling beetle Eleodes acuta
5210024 darkling beetle Eleodes carbonaria
5210025 darkling beetle Eleodes extricata
5210026 darkling beetle Eleodes extricata
5210037 darkling beetle Eleodes extricata
5210034 darkling beetle Eleodes fusiformis
5209096 clown beetle Eleodes hispilabris Adult feeding on fallen flower petal
5210033 clown beetle Eleodes hispilabris
5210053 clown beetle Eleodes hispilabris Adult in defensive posture
5210054 clown beetle Eleodes hispilabris Adult in defensive posture
5210022 darkling beetle Eleodes longicollis
5210049 darkling beetle Eleodes longicollis Adult in defensive posture
5210036 darkling beetle Eleodes nigrina
5210029 darkling beetle Eleodes obscura
5210027 darkling beetle Eleodes pimelioides
5210023 false wireworm beetle Eleodes tricostata
5209097 scalloped false wireworm beetle Embaphion muricata Adult in found under cow dung
5210016 alfalfa weevil Hypera postica Larval damage to first cutting
5210017 alfalfa weevil Hypera postica Larva and associated feeding injury
5210066 goldenrod solider beetle Chauliognathus pensylvanicus
5210067 goldenrod solider beetle Chauliognathus pensylvanicus Adults including mating pair
5210068 goldenrod solider beetle Chauliognathus pensylvanicus Mating pair
5209043 blue beetle Gibbifer californicus mating; May 17, 2007. Huerfano County, Colorado
5209051 scarab beetle Euphoria kernii This species is commonly found at flowers. Adults are highly variable in coloration and patterning.
5209052 scarab beetle Euphoria kernii This species is commonly found at flowers, with thistles being among those favored. Adults are highly variable in coloration and patterning.
5209053 scarab beetle Euphoria kernii This species is commonly found at flowers, such as those of prickly pear cactus. Adults are highly variable in coloration and patterning.
5209033 bronze birch borer Agrilus anxius
5209057 cactus longhorn beetle Moneilema annulatum
5209029 green dock beetle Gastrophysa cyanea
5209030 green dock beetle Gastrophysa cyanea
5209031 green dock beetle Gastrophysa cyanea
5209028 leaf beetle Gastrophysa spp.
5209058 blister beetle Epicauta valida
5209059 blister beetle Epicauta valida
5188066 green dock beetle Gastrophysa cyanea Adult female
5188068 green dock beetle Gastrophysa cyanea Adult male
5188069 green dock beetle Gastrophysa cyanea Adult female
5188070 green dock beetle Gastrophysa cyanea Mating pair
5188071 green dock beetle Gastrophysa cyanea Mating pair
5188017 darkling beetle Eleodes spp. Skin tanning produced by defensive secretions of Eleodes beetles
1491053 goldsmith beetles Cotalpa spp.
1491050 redheaded ash borer Neoclytus acuminatus
1475029 spotted lady beetle Coleomegilla maculata feeding on eggs of Colorado potato beetle
5000005 long-horned beetle Eburia spp. July 14, 2006
2200098 metalic wood-boring beetle Agrilus macer Adult resting on mesquite leaf. July 10, 2006
1475078 lord leaf beetle Coleothorpa dominicana
1475056 rabbitbrush beetle Trirhabda nitidicollis
1475033 convergent lady beetle Hippodamia convergens at egg hatch
1475005 multicolored Asian lady beetle Harmonia axyridis feeding on aphid
1475012 palestriped flea beetle Systena blanda adults and associated feeding injury to common bean
1475013 palestriped flea beetle Systena blanda
1475023 lady beetles Scymnus spp. feeding on cochineal scale. September 3, 2000.
1475030 lady beetles Scymnus spp. Young larva on colony of Eriosoma sp. aphids in elm
1475001 two-spotted lady beetle Adalia bipunctata
1475002 two-spotted lady beetle Adalia bipunctata teneral adult shortly after eclosion
1475003 two-spotted lady beetle Adalia bipunctata
1475004 two-spotted lady beetle Adalia bipunctata
1475024 two-spotted lady beetle Adalia bipunctata laying egg mass
1475025 two-spotted lady beetle Adalia bipunctata egg mass (orange) compared to egg mass of elm leaf beetle (yellow)
1475026 two-spotted lady beetle Adalia bipunctata freshly laid egg mass (smaller, yellow) compared to egg mass of Colorado potato beetle (larger, orange)
1475028 two-spotted lady beetle Adalia bipunctata feeding amongst aphid colony
1475022 mealybug destroyer Cryptolaemus montrouzieri feeding on hawthorn mealybug following outdoor release
1475006 large lady beetle Anatis lecontei
1475008 large lady beetle Anatis lecontei
1475009 large lady beetle Anatis lecontei
1475021 lady beetle Coccidophilus atronitens Common predator of pine needle scale in Colorado
1475032 lady beetles Stethorus spp.
1475031 eye-spotted lady beetle Anatis mali
1475044 rose curculio Merhynchites bicolor
1475014 American spider beetle Mezium americanum
1475054 potato flea beetle Epitrix cucumeris damage to foliage
1475010 banded elm bark beetle Scolytus schevyrewi adults and associated twig feeding
1475011 banded elm bark beetle Scolytus schevyrewi adults and associated twig feeding
5084060 threespotted flea beetle Disonycha triangularis
5083034 lizard beetle Acropteroxys gracilis
5083032 leaf beetle Zygogramma continua
5084008 rabbitbrush beetle Trirhabda nitidicollis late instar larvae
5084025 rabbitbrush beetle Trirhabda nitidicollis late instar larvae
5084039 lord leaf beetle Coleothorpa dominicana
5084040 lord leaf beetle Coleothorpa dominicana
5083049 Knab's leaf beetle Chrysomela knabi showing cream color in early June
5084015 Knab's leaf beetle Chrysomela knabi in spring
5084017 Knab's leaf beetle Chrysomela knabi
5084018 Knab's leaf beetle Chrysomela knabi in spring
5084019 Knab's leaf beetle Chrysomela knabi in late summer
5084020 Knab's leaf beetle Chrysomela knabi late stage larva
5084021 Knab's leaf beetle Chrysomela knabi
5084022 Knab's leaf beetle Chrysomela knabi larvae at egg hatch
5084023 Knab's leaf beetle Chrysomela knabi and damage
5084029 Knab's leaf beetle Chrysomela knabi late stage larva
5084032 apple flea beetle Altica foliaceae damage to crabapple
5084033 apple flea beetle Altica foliaceae crabapple
5083053 Collops beetle Collops punctatus
5083054 Collops beetle Collops punctatus
5084007 tuber flea beetle Epitrix tuberis shallow tunnels from larval wounds exposed at peeling
5084009 three-lined Lema beetle Lema trivittata
5084010 three-lined Lema beetle Lema trivittata
5084011 three-lined Lema beetle Lema trivittata larvae shortly after egg hatch
5084012 three-lined Lema beetle Lema trivittata larvae and injury
5084013 three-lined Lema beetle Lema trivittata shortly after eff hatch
5084014 three-lined Lema beetle Lema trivittata close-up of late instar larvae with feces on the back.
5084028 striped cucumber beetle Acalymma vittatum teneral adult
5084024 cottonwood leaf beetle Chrysomela scripta larvae everting defensive glands
5084026 cottonwood leaf beetle Chrysomela scripta in late summer
5084030 cottonwood leaf beetle Chrysomela scripta mating
5084043 cottonwood leaf beetle Chrysomela scripta mixed larval stages
5083047 black dot spurge flea beetle Aphthona nigriscutis June 24, 2006
5083048 black dot spurge flea beetle Aphthona nigriscutis June 24, 2006
5083095 sunflower headclipping weevil Haplorhynchites aeneus
5083096 sunflower headclipping weevil Haplorhynchites aeneus
5083097 sunflower headclipping weevil Haplorhynchites aeneus
5084006 hollyhock weevil Rhopalapion longirostre Pile of males attempting to mate with female
5083085 rose stem girdler Agrilus cuprescens
5083084 metalic wood-boring beetle Agrilus cyanescens
5083079 metalic wood-boring beetle Acmaeodera mixta feeding on pollen
5083080 gold-pitted borer Chrysobothris breviloba
5083081 metalic wood-boring beetle Agrilus lacustris
5083082 metalic wood-boring beetle Agrilus lacustris
5083099 rough strawberry root weevil Otiorhynchus rugosostriatus
5083093 lesser knapweed flower weevil Larinus minutus Mating pair from recently established population.
5084002 alfalfa weevil Hypera postica and associated damage to new growth
5084003 alfalfa weevil Hypera postica in terminal growth
5084004 alfalfa weevil Hypera postica
5084001 musk thistle head weevil Rhinocyllus conicus
5083100 musk thistle head weevil Rhinocyllus conicus mating
5083098 bluegrass billbug Sphenophorus parvulus overwintered adult walking on sidewalk in spring
5083043 wedge-shaped beetles Macrosiagon spp. Photo taken July 14, 2006
5082087 mountain pine beetle Dendroctonus ponderosae dead adult in pitch out produced in tree defense
5083033 cottonwood leaf beetle Chrysomela scripta
5082096 leaf beetle Coleothorpa axillaris
5082098 short-horned leaf beetle Coleothorpa vittigera
5024038 twenty-spotted lady beetle Psyllobora borealis
5024039 twenty-spotted lady beetle Psyllobora borealis
5024046 transverse ladybeetle Coccinella transversoguttata
5024040 lady beetles Hyperaspis spp. feeding at leafy spurge flower
5024045 lady beetle Coccinella monticola
5023098 blister beetles Nemognatha spp. feeding at thistle
5023100 blister beetles Nemognatha spp. feeding at thistle
5024001 blister beetles Nemognatha spp.
5024002 blister beetles Nemognatha spp.
5025038 Mexican bean beetle Epilachna varivestis
5025039 Mexican bean beetle Epilachna varivestis
5025040 Mexican bean beetle Epilachna varivestis
5024090 walnut twig beetle Pityophthorus juglandis Larvae associate with area of Fusarium infection on trunk.
5024091 walnut twig beetle Pityophthorus juglandis Twig dieback associated with twig beetle infestation.
5024088 walnut twig beetle Pityophthorus juglandis Extension larval tunnel in trunk area associated with Fusarium sp. infection.
5024036 blue beetle Gibbifer californicus
5024047 blue beetle Gibbifer californicus
5024050 blue beetle Gibbifer californicus
5024051 blue beetle Gibbifer californicus
5023080 Mexican bean beetle Epilachna varivestis
5023083 Mexican bean beetle Epilachna varivestis
5024030 multicolored Asian lady beetle Harmonia axyridis Feeding on honeydew of oak rough bulletgall
5024031 multicolored Asian lady beetle Harmonia axyridis
5024032 multicolored Asian lady beetle Harmonia axyridis prepupa
5024033 multicolored Asian lady beetle Harmonia axyridis
5023084 immaculate blister beetle Epicauta immaculata
5023086 blister beetle Epicauta nigritarsis
5023087 blister beetle Epicauta sericans Fort Sill, OK
5023094 black blister beetle Epicauta pensylvanica
5023099 blister beetle Zonitis atripennis
5023089 Pyrota insulata Pyrota insulata
5023090 rust colored beetle Epicauta ferruginea
5023092 rust colored beetle Epicauta ferruginea
5023093 rust colored beetle Epicauta ferruginea
5024004 rust colored beetle Epicauta ferruginea feeding at a sunflower with adult Nemognatha sp.
5023095 blister beetle Epicauta valida
5023096 blister beetle Epicauta valida
5023097 blister beetle Epicauta valida Mating pair
5024005 blister beetle Epicauta valida Adults massed near moisture of llivestock water trough.
5024044 lady beetle Hippodamia parenthesis
5024034 twicestabbed lady beetle Chilocorus stigma associated with colony of poplar scale
5024035 twicestabbed lady beetle Chilocorus stigma associated with colony of poplar scale
5024037 twicestabbed lady beetle Chilocorus stigma pupal and larval exuviae
5024042 sevenspotted lady beetle Coccinella septempunctata feeding
5024041 sevenspotted lady beetle Coccinella septempunctata
5024043 sevenspotted lady beetle Coccinella septempunctata
5023085 Mexican bean beetle Epilachna varivestis
5024007 red-femured milkweed borer Tetraopes femoratus
5024008 red-femured milkweed borer Tetraopes femoratus
5024009 red milkweed beetle Tetraopes discoideus
5024011 long-horned beetle Tragidion coquus
5024012 long-horned beetle Tragidion coquus mating pair
5024028 long-horned beetle Batyle suturalis pearsalli
5024026 soybean stem borer Dectes texanus
5024029 spotted pine sawyer Monochamus clamator
5024015 locust borer Megacyllene robiniae Mated pair with female ovipositing.
5024016 locust borer Megacyllene robiniae female
5024027 whitespotted sawyer Monochamus scutellatus
5000003 cottonwood borer Plectrodera scalator Newly emerged adult on twig. July 12, 2006
5000009 Drummond's blue Buprestid Lampetis drummondi Adult on host plant. July 11, 2006
5000011 Drummond's blue Buprestid Lampetis drummondi Adult on host plant. July 11, 2006
2200086 Colorado potato beetle Leptinotarsa decemlineata Adult on its native host. July 10, 2006
2200087 Colorado potato beetle Leptinotarsa decemlineata Adults and larva on native host. July 10, 2006
2200088 Colorado potato beetle Leptinotarsa decemlineata Larva on native host. July 10, 2006
2200090 Colorado potato beetle Leptinotarsa decemlineata Larva on native host. May 24, 2006
2200095 striped cucumber beetle Acalymma vittatum Teneral adult
2200094 tuber flea beetle Epitrix tuberis Adult injury to tomato foliage and fruit.
5000006 firefly Pleotomus pallens Adult caught at light trap. July 14, 2006
2200100 horned passalus Odontotaenius disjunctus Larvae extracted from rotten log. July 11, 2006
5000002 horned passalus Odontotaenius disjunctus Close up of larva showing characteristic reduced forelegs. July 11, 2006
2200092 crucifer flea beetle Phyllotreta cruciferae Heavy infestation on seedling broccoli.
2200093 crucifer flea beetle Phyllotreta cruciferae Heavy infestation on seedling broccoli.
5000007 glowworm beetles Phengodes spp. Adult caught at light trap. July 12, 2006
2200070 dung beetle Canthon praticola An apparently confused adult pushing an isopod across a gravel road; July 13, 2006
2200047 giant water scavenger beetle Hydrophilus triangularis August 17, 2006
2200049 giant water scavenger beetle Hydrophilus triangularis August 17, 2006
1455009 sexton beetles Nicrophorus spp. commensal mites packed around the head of an adult beetle
1455147 smaller European elm bark beetle Scolytus multistriatus
1455160 blue spruce engraver Ips hunteri Adults on penny
1455121 Dermestid beetles Trogoderma spp. Adult and larva
1455122 Dermestid beetles Trogoderma spp. Adult and larva
1455126 hide beetles Dermestes spp.
1455098 fireflies Photuris spp. Turned to show light producing organ
1455024 threespotted flea beetle Disonycha triangularis
1455054 spotted asparagus beetle Crioceris duodecimpunctata
1455055 spotted asparagus beetle Crioceris duodecimpunctata
1455056 spotted asparagus beetle Crioceris duodecimpunctata
1455057 spotted asparagus beetle Crioceris duodecimpunctata
1455058 asparagus beetle Crioceris asparagi
1455059 asparagus beetle Crioceris asparagi
1455060 asparagus beetle Crioceris asparagi
1455061 asparagus beetle Crioceris asparagi
1455062 asparagus beetle Crioceris asparagi
1455063 asparagus beetle Crioceris asparagi
1455065 asparagus beetle Crioceris asparagi
1455066 asparagus beetle Crioceris asparagi
1455067 asparagus beetle Crioceris asparagi
1455068 asparagus beetle Crioceris asparagi
1455078 lilac root weevil Otiorhynchus meridionalis Adult feeding damage
1455075 lilac root weevil Otiorhynchus meridionalis note characteristic fecal spotting
1455076 lilac root weevil Otiorhynchus meridionalis Note characteristic fecal spotting
1455074 lilac root weevil Otiorhynchus meridionalis
1246039 poplar-and-willow borer Cryptorhynchus lapathi
1326205 banded elm bark beetle Scolytus schevyrewi Newly introduced species in western US. Found on Elm, caragana, and Russian olive.
1243035 crucifer flea beetle Phyllotreta cruciferae Larva on Crucifer roots.
1243167 checkered melon beetle Paranapiacaba tricincta
1243034 crucifer flea beetle Phyllotreta cruciferae Severe injury to seed pod of radish.
1243166 checkered melon beetle Paranapiacaba tricincta
1243008 threespotted flea beetle Disonycha triangularis
1243161 three-lined Lema beetle Lema trivittata
1243162 three-lined Lema beetle Lema trivittata
1243163 three-lined Lema beetle Lema trivittata Egg mass at hatch on Tomatillo
1243012 horseradish flea beetle Phyllotreta armoraciae
1243165 three-lined Lema beetle Lema trivittata Larvae feeding on Tomatillo leaf
1243177 striped cucumber beetle Acalymma vittatum Larvae in Cantaloupe rind
1243011 tobacco flea beetle Epitrix hirtipennis
1243172 striped cucumber beetle Acalymma vittatum Adults of both striped cucumber beetle and squash bug damaging squash seedling
1243143 hollyhock weevil Rhopalapion longirostre Mating pair on seed head on hollyhock.
1243144 hollyhock weevil Rhopalapion longirostre Mating pair on seed head on hollyhock.
1243116 carrot weevil Listronotus oregonensis
1243049 false Japanese beetle Strigoderma arboricola False Japanese beetle adults massed on prickly poppy flowers
1243066 lined June beetle Polyphylla hammondi in sod
1243067 tenlined June beetle Polyphylla decemlineata in sod.
1243050 false Japanese beetle Strigoderma arboricola
1243052 false Japanese beetle Strigoderma arboricola digging for oviposition
1243062 bumble flower beetle Euphoria inda Adults feeding at cardoon flower.
1243061 bumble flower beetle Euphoria inda Adult feeding at strawflower.
1243063 bumble flower beetle Euphoria inda Larvae and cell in horse manure compost.
1243064 bumble flower beetle Euphoria inda Larva and cell in horse manure compost.
1243065 bumble flower beetle Euphoria inda Larvae developing under cow manure patty.
1326206 banded elm bark beetle Scolytus schevyrewi Newly introduced species in western US. Found on Elm, caragana, and Russian olive.
1326189 Rocky Mountain billbug Sphenophorus cicatristriatus Larvae and damage on bluegrass.
1326190 Rocky Mountain billbug Sphenophorus cicatristriatus Larvae and damage on Bluegrass.
1326191 Rocky Mountain billbug Sphenophorus cicatristriatus Larvae dislodged during sod cutting of Bluegrass.
1326201 bronze birch borer Agrilus anxius Adult with Phasgonophora sulcata, a parasitoid of Agrilus spp.
1326203 bronze birch borer Agrilus anxius
1326149 Mexican bean beetle Epilachna varivestis Larvae at egg hatch on beans.
1326151 Mexican bean beetle Epilachna varivestis Pupa and associated larval damage on bean.
1326152 Mexican bean beetle Epilachna varivestis Teneral adult on bean.
1326153 Mexican bean beetle Epilachna varivestis Adult with summer coloration on bean.
1326154 Mexican bean beetle Epilachna varivestis Adult with darker color prior to hibernation on bean.
1326155 Mexican bean beetle Epilachna varivestis Adult on bean.
1325084 poplar borer Saperda calcarata
1325083 spotted pine sawyer Monochamus clamator
1326088 cherry curculio Anthonomus consors Cavity in pit produced by developing larva
1326085 cherry curculio Anthonomus consors Feeding punctures on fruit
1326086 cherry curculio Anthonomus consors Adults on foliage
1326028 white pine weevil Pissodes strobi Chip cocoons in damaged terminal
1325096 rose stem girdler Agrilus cuprescens

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