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Image Subject Name Scientific Name Description
5495198 willow scale Diaspidiotus gigas Scale on aspen bark
5495199 willow scale Diaspidiotus gigas
5495200 willow scale Diaspidiotus gigas Scale on aspen bark
5495201 willow scale Diaspidiotus gigas Willow scale crawler
5495202 willow scale Diaspidiotus gigas
5495266 cicadas Flagging damage to Gamble Oak
5495195 willow scale Diaspidiotus gigas Scales on aspen bark
5490392 hawthorn mealybug Phenacoccus dearnessi Honeydew produced by heavy infestation of hawthorn mealybug
5490388 hawthorn mealybug Phenacoccus dearnessi Fully developed females on twigs
5490389 hawthorn mealybug Phenacoccus dearnessi Fully developed females on twigs
5490390 hawthorn mealybug Phenacoccus dearnessi Late instar nymphs that have collected under tape on tree
5490391 hawthorn mealybug Phenacoccus dearnessi
5490393 European elm scale Eriococcus spuria late instar females
5490394 European elm scale Eriococcus spuria full grown females and cocoons produced by males
5490395 European elm scale Eriococcus spuria Adults females packed into bark cracks.
5490397 European elm scale Eriococcus spuria
5490313 hackberry lace bug Corythucha celtidis Adult, nymphs and nymphal skins
5490314 hackberry lace bug Corythucha celtidis Adults, nymphs and nymphal skins
5490315 hackberry lace bug Corythucha celtidis injury on upper leaf surface
5490398 European elm scale Eriococcus spuria Male attempting to mate with female
5490399 European elm scale Eriococcus spuria Late instar. Some mummies resultign from parasitism are evident
5490366 golden oak scale Asterolecanium variolosum
5469116 gloomy scale Melanaspis tenebricosa
5430575 hackberry blistergall psyllid Pachypsylla celtidisvesiculum Pachypsylla celtidisvesicula
5430570 hackberry blistergall psyllid Pachypsylla celtidisvesiculum Pachypsylla celtidisvesicula
5430571 hackberry blistergall psyllid Pachypsylla celtidisvesiculum Pachypsylla celtidisvesicula
5430572 hackberry blistergall psyllid Pachypsylla celtidisvesiculum Pachypsylla celtidisvesicula
5430573 hackberry blistergall psyllid Pachypsylla celtidisvesiculum Pachypsylla celtidisvesicula
5430574 hackberry blistergall psyllid Pachypsylla celtidisvesiculum Pachypsylla celtidisvesicula
5433171 oleander scale Aspidiotus nerii Intercepted on Laurus nobilis from Argentina by E. Patten of Customs and Border Protection at Atlanta International Airport.  
5433166 woolly whitefly Aleurothrixus floccosus Intercepted on Laurus nobilis from St. Lucia by T. Powell of Customs and Border Protection at Atlanta International Airport.  
5433167 woolly whitefly Aleurothrixus floccosus Intercepted on Laurus nobilis from St. Lucia by T. Powell of Customs and Border Protection at Atlanta International Airport.
5433457 Ross's black scale Lindingaspis rossi Intercepted on Laurus nobilis from Argentina by E. Patten at Atlanta International Airport Custom and Border Protection
1669002 periodical cicada Magicicada septendecim cast skins of 17 yr. "locust"
1860060 dog-day cicada Tibicen spp. castskin
5018095 periodical cicada Magicicada spp. exuviae and emergence holes
5018098 periodical cicada Magicicada spp. exuviae
0886018 periodical cicada Magicicada septendecim Exuvium of nymph showing powerful front legs
5445570 magnolia scale Neolecanium cornuparvum magnolia scale nymphs tended by ants March 30,2009
1204110 periodical cicada Magicicada spp. typical cast skin of newly emerged nymphs
5018096 periodical cicada Magicicada spp. exuvia
5472902 kermes scales Kermes spp. Female Lecanium scale opened to reveal many eggs.
5472903 kermes scales Kermes spp. Female Lecanium scale (Lecanium sp.) opened to reveal many eggs.
5472898 kermes scales Kermes spp. Close-up of female Lecanium scales on White oak.
5472899 kermes scales Kermes spp. Close-up of female Lecanium scales on White oak.
5472900 kermes scales Kermes spp. Close-up of 2 female Lecanium scales on White oak.
5472901 kermes scales Kermes spp. Female Lecanium scale opened to reveal many eggs.
5472895 kermes scales Kermes spp. Close-up of eggs of Lecanium scale on White oak.
5472896 kermes scales Kermes spp. White oak with dieback of new terminal growth caused by a Lecanium scale.
5472897 kermes scales Kermes spp. White oak with dieback of new terminal growth caused by a Lecanium scale.
1626051 whiteflies Immature whiteflies may be confused with scale insects, but are much smaller.
1223059 blackmargined aphid Monellia caryella
1223062 yellow pecan aphid Monelliopsis pecanis 1st instar
1223057 blackmargined aphid Monellia caryella
1223069 pecan leaf phylloxera Phylloxera notabilis in gall
5444395 white planthopper Metcalfa pruinosa
5444393 white planthopper Metcalfa pruinosa
5444394 white planthopper Metcalfa pruinosa
5445262 mealy plum aphid Hyalopterus pruni
5449498 beech scale Cryptococcus fagisuga
5449497 beech scale Cryptococcus fagisuga
5447463 beech scale Cryptococcus fagisuga
5430343 Florida red scale Chrysomphalus aonidum
5430344 Florida red scale Chrysomphalus aonidum eggs also present.
5445566 magnolia scale Neolecanium cornuparvum Adults with coccinellids and fly (wooden stake on left, host stem on right) July 10 2009
5446769 white peach scale Pseudaulacaspis pentagona Test removed to show female and eggs
5445832 Norway maple aphid Periphyllus lyropictus Norway maple aphid
5445325 leafcurl ash aphid Meliarhizophagus fraxinifolii Colony exposed within curled ash leaf
5445324 leafcurl ash aphid Meliarhizophagus fraxinifolii Colony exposed within curled ash leaf
5445322 leafcurl ash aphid Meliarhizophagus fraxinifolii Colony exposed within curled ash leaf
1325017 pin oak kermes Allokermes galliformis mature females on pin oak
1325018 pin oak kermes Allokermes galliformis nymphs around bark scale on pin oak
1243078 pin oak kermes Allokermes galliformis Eggs at hatch on Pin oak.
5445211 boxelder psyllid Cacopsylla negundinis
1326120 pin oak kermes Allokermes galliformis Dead twigs typical of injury
1476113 pin oak kermes Allokermes galliformis Kermes scale and assocaited sticky ooze
1476114 pin oak kermes Allokermes galliformis
5445354 ash plant bug Tropidosteptes amoenus
5445320 leafcurl ash aphid Meliarhizophagus fraxinifolii Leafcurling of new foliage of green ash
5445321 leafcurl ash aphid Meliarhizophagus fraxinifolii Colony exposed within curled ash leaf
5445374 poplar vagabond aphid Mordvilkoja vagabunda Large pseudo-gall produced on aspen terminal
1541879 cottony maple leaf scale Pulvinaria acericola
1541882 cottony maple leaf scale Pulvinaria acericola
1541878 cottony maple leaf scale Pulvinaria acericola
1243079 scurfy scale Chionaspis furfura Old scales and crawlers on Aspen.
5443640 kudzu bug Megacopta cribraria
5443641 kudzu bug Megacopta cribraria
5443642 kudzu bug Megacopta cribraria
5443643 kudzu bug Megacopta cribraria
5443644 kudzu bug Megacopta cribraria
5443354 brown marmorated stink bug Halyomorpha halys image captured post-mortem
2666007 yellow pecan aphid Monelliopsis pecanis
2251075 hackberry nipplegall maker Pachypsylla celtidismamma
1223073 pecan spittlebug Clastoptera achatina
1122019 tuliptree scale Toumeyella liriodendri on magnolia
0795079 kermes scales Kermes spp.
0355010 petiolegall psyllid Pachypsylla venusta on oak
1326067 woolly beech aphid Phyllaphis fagi Colony on beech leaf
1325009 sycamore lace bug Corythucha ciliata
3067034 ash plant bug Tropidosteptes amoenus and damage
1201006 poplar vagabond aphid Mordvilkoja vagabunda gall
1396032 oak lace bug Corythucha arcuata
3066041 oak phylloxerids Phylloxera spp. new shoots in Nuttall oak seedlings killed
3067031 ash plant bug Tropidosteptes amoenus nymphs, adults and injury
1326114 European elm scale Eriococcus spuria Mature females
3066040 oak phylloxerids Phylloxera spp. new shoots on Nuttall oak seedlings killed
1204100 periodical cicada Magicicada spp. typical damage to young trees caused by ovipositing females, broken limb
5115005 striped mealybug Ferrisia virgata Collector: K.Miller Date of photograph or collection: 5/8/1987
5112031 green shield scale Pulvinaria psidii Collector: R.Vasquez; Date of photograph or collection: 12/1981
5112032 green shield scale Pulvinaria psidii Collector: R.Vasquez Date of photograph or collection: 12/1981
5112030 green shield scale Pulvinaria psidii Collector: Croce/Green; Date of photograph or collection: 5/28/1976
5112033 green shield scale Pulvinaria psidii Collector: Croce/Green Date of photograph or collection: 5/28/1976
5112034 green shield scale Pulvinaria psidii Collector: R.Vasquez Date of photograph or collection: 12/1981
5112041 armored scale Andaspis punicae Collector: J.Xerogeanes Date of photograph or collection: 12/23/1991
5112042 armored scale Andaspis punicae Collector: J.Xerogeanes Date of photograph or collection: 12/23/1991
5112043 armored scale Andaspis punicae Collector: J.Xerogeanes Date of photograph or collection: 12/23/1991
5112046 armored scale Andaspis punicae Collector: J.Xerogeanes Date of photograph or collection: 12/23/1991
5119002 mining scale Howardia biclavis Collector: H. Miller Date of photograph or collection: 01/27/1980
5119003 mining scale Howardia biclavis Collector: H. Miller Date of photograph or collection: 01/27/1980
5119005 mining scale Howardia biclavis Collector: Davidson Date of photograph or collection: 07/04/1994
5119007 mining scale Howardia biclavis Collector: Davidson Date of photograph or collection: 04/1994
5120039 fig scale Lepidosaphes conchiformis Collector: D.R.Miller Date of photograph or collection: 7/20/1979
5120040 fig scale Lepidosaphes conchiformis Collector: J.Davidson Date of photograph or collection: 7/20/1979
5120042 fig scale Lepidosaphes conchiformis Collector: D.R.Miller Date of photograph or collection: 7/20/1979
5120043 fig scale Lepidosaphes conchiformis Collector: D.R.Miller Date of photograph or collection: 7/20/1979
5120044 fig scale Lepidosaphes conchiformis Collector: D.R.Miller Date of photograph or collection: 7/20/1979
5120083 hawthorn mealybug Phenacoccus dearnessi Collector: F. Horn Date of photograph or collection: 06/14/1976
1326003 kermes scale Allokermes gillettei Crawlers exposed from female
1326111 European elm scale Eriococcus spuria Mature females and crawlers
5118032 orchid scale Conchaspis angraeci Collector: D.R. Miller Date of photograph or collection: 03/20/1977
5112100 soft scale Toumeyella quadrifasciatum Collector: Randall/May Date of photograph or collection: 10/5/1982
5113001 soft scale Toumeyella quadrifasciatum Collector: Randall/May Date of photograph or collection: 10/5/1982
5109055 European elm scale Eriococcus spuria on Ulmus parvifolia 'Sempervirens'
5114092 wax scale Pulvinaria urbicola Date of photograph or collection: 3/27/1977
5112013 wax scale Parthenolecanium pruinosum Collector: Dreistadt Date of photograph or collection: 3/26/1994
5112014 wax scale Parthenolecanium pruinosum Collector: M.Croce Date of photograph or collection: 4/24/1984
5112027 citricola scale Coccus pseudomagnoliarum Collector: Dreistadt; Date of photograph or collection: 03/26/1994
5112028 citricola scale Coccus pseudomagnoliarum Collector: Dreistadt; Date of photograph or collection: 03/26/1994
5112094 soft scale Toumeyella quadrifasciatum Collector: Randall/May Date of photograph or collection: 10/5/1982
5112095 soft scale Toumeyella quadrifasciatum Collector: Randall/May Date of photograph or collection: 10/5/1982
5112096 soft scale Toumeyella quadrifasciatum Collector: Randall/May Date of photograph or collection: 10/5/1982
5112097 soft scale Toumeyella quadrifasciatum Collector: Randall/May Date of photograph or collection: 10/5/1982
5112098 soft scale Toumeyella quadrifasciatum Collector: Randall/May Date of photograph or collection: 10/5/1982
5112099 soft scale Toumeyella quadrifasciatum Collector: Randall/May Date of photograph or collection: 10/5/1982
5121052 soft scale Ceroplastes dugesii Collector: D.R.Miller Date of photograph or collection: 03/27/1977
5122073 Mexican mealybug Phenacoccus gossypii Collector: Buxton Date of photograph or collection: 10/13/1978
5123020 Japanese maple scale Lopholeucaspis japonica Collector: J.Davidson Date of photograph or collection: 05/1976
5110083 olive scale Parlatoria oleae Col. by J.A. Davidson; Date of photograph or collection: 07/1990
5113005 oak eriococcin Eriococcus quercus Collector: R.J.Gill/ N.Smith Date of photograph or collection: 4/24/1981
5113006 oak eriococcin Eriococcus quercus Collector: R.J.Gill/ N.Smith Date of photograph or collection: 4/24/1981
5113007 giant coccid Kuwania quercus Collector: T.Kono Date of photograph or collection: 06/22/1979
5113008 giant coccid Kuwania quercus Collector: T.Kono Date of photograph or collection: 06/22/1979
5113009 giant coccid Kuwania quercus Collector: T.Kono Date of photograph or collection: 06/22/1979
5113010 giant coccid Kuwania quercus Collector: T.Kono Date of photograph or collection: 06/22/1979
5113011 giant coccid Kuwania quercus Collector: T.Kono Date of photograph or collection: 06/22/1979
5113016 giant coccid Kuwania quercus Collector: T.Kono Date of photograph or collection: 06/22/1979
5113012 giant coccid Kuwania quercus Collector: D.Opgenorth Date of photograph or collection: 05/27/1986
5113013 giant coccid Kuwania quercus ollector: D.Opgenorth Date of photograph or collection: 05/27/1986
5113014 giant coccid Kuwania quercus Collector: D.Opgenorth Date of photograph or collection: 05/27/1986
5113015 giant coccid Kuwania quercus Collector: D.Opgenorth Date of photograph or collection: 05/27/1986
5113017 armored scale Quernaspis quercus Collector: J.A.Davidson Date of photograph or collection: 7/18/1979
5113020 armored scale Quernaspis quercus Collector: J.A.Davidson Date of photograph or collection: 8/1/1979
5113023 armored scale Quernaspis quercus Collector: J.A.Davidson Date of photograph or collection: 7/18/1979
5113018 armored scale Quernaspis quercus Collector: Thomas/ Akana Date of photograph or collection: 10/31/1975
5113019 armored scale Quernaspis quercus Collector: Thomas/ Akana Date of photograph or collection: 10/31/1975
5113024 giant coccids Xylococculus quercus Collector: Gianelli/Gill Date of photograph or collection: 07/28/1981
5113025 giant coccids Xylococculus quercus Collector: Gianelli/Gill Date of photograph or collection: 07/28/1981
5113026 giant coccids Xylococculus quercus Collector: Brown/Gill Date of photograph or collection: 09/30/1981
5113027 giant coccids Xylococculus quercus Collector: Gianelli/Gill Date of photograph or collection: 07/28/1981
5113028 giant coccids Xylococculus quercus Collector: Brown/Gill Date of photograph or collection: 09/30/1981
5113029 giant coccids Xylococculus quercus Collector: Brown/Gill Date of photograph or collection: 09/30/1981
5113030 giant coccids Xylococculus quercus Collector: Gianelli/Gill Date of photograph or collection: 07/28/1981
5113031 giant coccids Xylococculus quercus Collector: Gianelli/Gill Date of photograph or collection: 07/28/1981
5113033 giant coccids Xylococculus quercus Collector: Gianelli/Gill Date of photograph or collection: 07/28/1981
5113034 giant coccids Xylococculus quercus Collector: Gianelli/Gill Date of photograph or collection: 07/28/1981
5114081 oystershell scale Lepidosaphes ulmi Collector: J.A.Davidson Date of photograph or collection: 8/20/1980
5115007 striped mealybug Ferrisia virgata Collector: Haig Date of photograph or collection: 9/17/1975
5114098 golden oak scale Asterolecanium variolosum Collector: S.Dreistat Date of photograph or collection: 02/07/1991
5114099 golden oak scale Asterolecanium variolosum Collector: S.Dreistat Date of photograph or collection: 02/07/1991
5114100 golden oak scale Asterolecanium variolosum Collector: S.Dreistat Date of photograph or collection: 02/07/1991
5115006 striped mealybug Ferrisia virgata Collector: Haig Date of photograph or collection: 9/17/1975
5118028 giant coccid Xylococculus alni Collector: Haig/Spadoni Date of photograph or collection: 07/29/1981
5118029 giant coccid Xylococculus alni Collector: Haig/Spadoni Date of photograph or collection: 07/29/1981
5118030 giant coccid Xylococculus alni Collector: Haig/Spadoni Date of photograph or collection: 07/29/1981
5118097 giant coccid Xylococculus betulae Collector: M. Rhoades Date of photograph or collection: 06/1980
5119004 mining scale Howardia biclavis Collector: Davidson Date of photograph or collection: 01/27/1980
5119001 pit scales Asterolecanium spp. Collector: A.Walker
5119008 armored scale Chrysomphalus bifasciculatus Collector: D.R.Miller Date of photograph or collection: 07/20/1979
5119009 armored scale Chrysomphalus bifasciculatus Collector: D.R.Miller Date of photograph or collection: 07/20/1979
5120057 European fruit lecanium Parthenolecanium corni Collector: R.J.Gill Date of photograph or collection: 04/01/1981
5124067 armored scale Crassaspis multipora
5111070 Saratoga spittlebug Aphrophora saratogensis and nymph. Collector: M. J. Cody; Date of photograph or collection: 04/29/1993
5111069 aphids Collector: M. J. Cody; Date of photograph or collection: 04/29/1993
5111071 aphids Collector: M. J. Cody; Date of photograph or collection: 04/29/1993
5124013 false pit scales Lecanodiaspis spp. Collector: Alton Walker Date of photograph or collection: 02/1976
5111067 aphids Collector: M. J. Cody; Date of photograph or collection: 04/29/1993
5111066 sycamore scale Stomacoccus platani Collector: R.J.Gill; Date of photograph or collection: 04/27/1976
5112006 wax scale Parthenolecanium pruinosum Collector: M.Terry Date of photograph or collection: 4/13/1987
5112007 wax scale Parthenolecanium pruinosum Collector: M.Croce Date of photograph or collection: 4/24/1984
5112008 wax scale Parthenolecanium pruinosum Collector: M.Croce Date of photograph or collection: 4/24/1984
5111068 aphids Collector: M. J. Cody; Date of photograph or collection: 04/29/1993
5112009 wax scale Parthenolecanium pruinosum Collector: M.Terry Date of photograph or collection: 4/13/1987
5112010 wax scale Parthenolecanium pruinosum Collector: M.Terry Date of photograph or collection: 4/13/1987
5112011 wax scale Parthenolecanium pruinosum Collector: M.Terry Date of photograph or collection: 4/13/1987
5122096 soft scale Neopulvinaria innumerabilis
5114044 soft scales Toumeyella spp. Date of photograph or collection: 6/1977
1540862 oak phylloxerids Phylloxera spp.
1540860 oak phylloxerids Phylloxera spp.
1540861 oak phylloxerids Phylloxera spp.
5439431 soft scales On red oak
5439432 soft scales On red oak
1199031 beech scale Cryptococcus fagisuga
1470195 cottony maple scale Pulvinaria innumerabilis
1441131 oystershell scale Lepidosaphes ulmi
1398057 leafhopper Typhlocyba albicans Stippling damage on leaf in early summer. Hiawatha National Forest, MI
1326040 leafcurl plum aphid Brachycaudus helichrysi Tight leafcurling typical of spring infestation
1326001 kermes scale Allokermes gillettei Mature females
1246060 honeylocust plant bug Diaphnocoris chlorionis
5439063 tuliptree scale Toumeyella liriodendri
5439060 tuliptree scale Toumeyella liriodendri
5439061 tuliptree scale Toumeyella liriodendri
5439062 tuliptree scale Toumeyella liriodendri
5439046 Florida red scale Chrysomphalus aonidum Ilex cornuta ' needlepoint'
5439047 Florida red scale Chrysomphalus aonidum Ilex cornuta ' needlepoint'
5439048 Florida red scale Chrysomphalus aonidum Ilex cornuta ' needlepoint'
0010120 lecanium scales Coccus spp. Heavy infestation of multiple species over 10 acres
0010123 lecanium scales Coccus spp. Heavy infestation of over 10 acres
1470196 tuliptree scale Toumeyella liriodendri
2666052 black pecan aphid Melanocallis caryaefoliae
0014094 lace bugs Corythucha spp.
1419468 leafcurl ash aphid Meliarhizophagus fraxinifolii to white ash
1419474 leafcurl ash aphid Meliarhizophagus fraxinifolii to white ash
1419455 woolly alder aphid Prociphilus tessellatus on silver maple
1419456 woolly alder aphid Prociphilus tessellatus on maple
1419457 woolly alder aphid Prociphilus tessellatus on silver maple
1398085 ash plant bug Tropidosteptes amoenus Stippling damage on ash leaflet
1398084 leafcurl ash aphid Meliarhizophagus fraxinifolii Distorted foliage due to an aphid infestation on green ash. Photo taken in Minnesota.
1400134 periodical cicada Magicicada septendecim Branch flagging due to oviposition damage on oak, central Iowa, 1997 brood of cicada.
1400137 periodical cicada Magicicada septendecim Branch flagging on bur oak due to oviposition damage by the 1997 brood emergence of the periodical (17 year) cicada in central Iowa.
3046049 kermes scales Kermes spp.
1204107 periodical cicada Magicicada spp. typical damage caused by ovipositing females
1326109 European elm scale Eriococcus spuria colony of mature females at end of egg hatch (mid-July)
1326116 European elm scale Eriococcus spuria Nymphs along leaf veins and honeydew droplet
1326068 honeylocust leafhopper Macropsis fumipennis
1400136 periodical cicada Magicicada septendecim Branch flagging (death) due to oviposition wounds on twigs, periodical cicada 1997 emergence brood, central Iowa.
2102070 obscure scale Melanaspis obscura
3056021 obscure scale Melanaspis obscura
0976061 poplar petiolegall aphid Pemphigus populitransversus large gall at Salida Ranger District
1396127 leafhopper Typhlocyba albicans Hiawatha National Forest
1396031 oak lace bug Corythucha arcuata
2109072 leafcurl ash aphid Meliarhizophagus fraxinifolii Wooly ash aphids on underside of curled American ash leaf (Frazinus americana). The aphid colony has been largely parasitized by Aphelinus sp. Note the black aphid "mummies."
3056024 oak lecanium Parthenolecanium quercifex
1455197 grape mealybug Pseudococcus maritimus
1326011 treehopper Micrutalus calva
1293008 kermes scales Kermes spp. Savannah, Georgia (2004).
3057016 leafhoppers on stems
1326110 European elm scale Eriococcus spuria Nymphs on foliage
1326069 golden oak scale Asterodiaspis variolosa Colony on twig
1455115 leafcurl ash aphid Meliarhizophagus fraxinifolii Typical leaf curling damage
1246058 honeylocust plant bug Diaphnocoris chlorionis
1326115 European elm scale Eriococcus spuria Nymphs along leaf veins
1326112 European elm scale Eriococcus spuria Scale flagging typical of chronic infestation
1326108 European elm scale Eriococcus spuria colony of mature females at egg hatch (mid-June)
1400135 periodical cicada Magicicada septendecim ovipositing damage
1223072 pecan spittlebug Clastoptera achatina
1224056 yellow pecan aphid Monelliopsis pecanis
3067033 ash plant bug Tropidosteptes amoenus leaf stippling
1223103 twospotted spider mite Tetranychus urticae
1223071 pecan spittlebug Clastoptera achatina
1246057 honeylocust plant bug Diaphnocoris chlorionis shown with nymph on stem
3066090 lace bugs Corythucha spp. adults, nymphs and fecal spots on leaf
1223054 blackmargined aphid Monellia caryella
1626091 hickory gall phylloxera Phylloxera caryaecaulis A phylloxeran causes hickory leaf stem gall on the leaves, petioles, and twigs of hickory.
1223070 pecan leaf phylloxera Phylloxera notabilis
1223066 giant bark aphid Longistigma caryae nearly mature nymph
1223067 giant bark aphid Longistigma caryae
1223064 black pecan aphid Melanocallis caryaefoliae male
1223056 blackmargined aphid Monellia caryella
1223058 blackmargined aphid Monellia caryella
1326002 kermes scale Allokermes gillettei Crawlers exposed from female
5435264 sycamore lace bug Corythucha ciliata Overwintering lace bug (Corythucha ciliata) under the bark of black cherry
1441130 oystershell scale Lepidosaphes ulmi
3066042 leafcurl ash aphid Meliarhizophagus fraxinifolii heavily curled leaves caused by aphids with a cluster of green lacewing eggs
1326096 oak spittlebugs Clastoptera spp. Spittle mass and nymphs
1626026 magnolia scale Neolecanium cornuparvum The largest scale insect in the United States.
1150004 aphids aphid induced leaf curl
5430621 cottony cushion scale Icerya purchasi
5430352 Florida red scale Chrysomphalus aonidum scale pygidium with perivulvar pores shown
5430353 Florida red scale Chrysomphalus aonidum
5430592 magnolia scale Neolecanium cornuparvum
5430593 magnolia scale Neolecanium cornuparvum
5430594 magnolia scale Neolecanium cornuparvum
5430614 cottony cushion scale Icerya purchasi Host: Japanese Maple
5430615 cottony cushion scale Icerya purchasi
5430616 cottony cushion scale Icerya purchasi Host:Japanese maple Adult with nymphs
5430340 Florida red scale Chrysomphalus aonidum
5430341 Florida red scale Chrysomphalus aonidum
5430342 Florida red scale Chrysomphalus aonidum
1419479 leafcurl ash aphid Meliarhizophagus fraxinifolii to ash
1669043 tuliptree scale Toumeyella liriodendri on tulip poplar showing adults and crawlers
5430612 cottony cushion scale Icerya purchasi
5430613 cottony cushion scale Icerya purchasi
5430401 gloomy scale Melanaspis tenebricosa
5430595 magnolia scale Neolecanium cornuparvum
5430617 cottony cushion scale Icerya purchasi
2634012 poplar petiolegall aphid Pemphigus populitransversus
5430620 cottony cushion scale Icerya purchasi
5430598 magnolia scale Neolecanium cornuparvum
5430599 magnolia scale Neolecanium cornuparvum
5430597 magnolia scale Neolecanium cornuparvum
5430596 magnolia scale Neolecanium cornuparvum Host: Magnolia
5430618 cottony cushion scale Icerya purchasi
5430619 cottony cushion scale Icerya purchasi
5430610 cottony cushion scale Icerya purchasi
5430611 cottony cushion scale Icerya purchasi
5430580 cottony cushion scale Icerya purchasi
5430579 magnolia scale Neolecanium cornuparvum
5430404 gloomy scale Melanaspis tenebricosa pygidium Host: Silver Maple
5430405 gloomy scale Melanaspis tenebricosa pygidium Host: Silver Maple
5430406 gloomy scale Melanaspis tenebricosa pygidium perivulvar pores absent Host: Silver Maple
5430402 gloomy scale Melanaspis tenebricosa
5427670 potato leafhopper Empoasca fabae
5427671 magnolia scale Neolecanium cornuparvum
5427672 magnolia scale Neolecanium cornuparvum
5427674 oak lecanium Parthenolecanium quercifex
5123024 walnut scale Diaspidiotus juglansregiae
5109053 European elm scale Eriococcus spuria
5109054 European elm scale Eriococcus spuria
5112001 wax scale Parthenolecanium pruinosum
5112002 wax scale Parthenolecanium pruinosum
5112003 wax scale Parthenolecanium pruinosum
5112004 wax scale Parthenolecanium pruinosum
5112005 wax scale Parthenolecanium pruinosum
5113035 giant coccids Xylococculus quercus
5122005 kermes scale Allokermes essigii
5122007 kermes scale Allokermes essigii
5122008 kermes scale Allokermes essigii
5113002 oak lecanium Parthenolecanium quercifex
5113003 oak lecanium Parthenolecanium quercifex
5120054 European fruit lecanium Parthenolecanium corni
5122097 soft scale Neopulvinaria innumerabilis
5122100 soft scale Neopulvinaria innumerabilis
5123001 soft scale Neopulvinaria innumerabilis
5123002 soft scale Neopulvinaria innumerabilis
5123003 soft scale Neopulvinaria innumerabilis
5123025 walnut scale Diaspidiotus juglansregiae
5432154 willow scale Diaspidiotus gigas Crawlers of willow scale escaping from female scale
1326095 oak spittlebugs Clastoptera spp. Spittle mass and nymphs
5430403 gloomy scale Melanaspis tenebricosa
5395253 European fruit lecanium Parthenolecanium corni 1st instar
5395254 European fruit lecanium Parthenolecanium corni oozing and also a wasp is in picture
5395255 European fruit lecanium Parthenolecanium corni
5430400 gloomy scale Melanaspis tenebricosa
5427649 cottony cushion scale Icerya purchasi 120x
5427650 cottony cushion scale Icerya purchasi 60x
1293007 kermes scales Kermes spp. Widespread damage on Live Oak due to scale infestation in Savannah (2004).
1398066 woolly elm aphid Eriosoma americanum Leaf gall
1669044 cottony maple scale Pulvinaria innumerabilis scales on branch
0007069 poplar petiolegall aphid Pemphigus populitransversus Produces characteristic marble-sized galls on the petiole of cottonwood leaves.
0007070 poplar petiolegall aphid Pemphigus populitransversus When a gall is cut open, numerous aphids can be found inside.
1468271 oystershell scale Lepidosaphes ulmi
5019003 periodical cicada Magicicada spp. oviposition slits on twig
1293009 lecanium scales Coccus spp. (2004).
1388033 leafhopper Typhlocyba albicans Michigan's Upper Peninsula
1224019 black pecan aphid Melanocallis caryaefoliae and damage
1223119 aphids
1398051 beech scale Cryptococcus fagisuga Trunk covered with scale. Michigan's upper peninsula, 2004.
1398049 beech scale Cryptococcus fagisuga Beech scale covering the bark of a larger American beech. Upper Peninsula of Michigan, 2002
1626025 oak lecanium Parthenolecanium quercifex Dead females on the twig and settled crawlers on the leaf.
1223118 aphids
3066047 giant bark aphid Longistigma caryae
0886019 periodical cicada Magicicada septendecim Oviposition slits
1223068 pecan leaf phylloxera Phylloxera notabilis
3066046 poplar leaf aphid Chaitophorus populicola on 1st year plantation
3067032 ash plant bug Tropidosteptes amoenus
4212020 poplar vagabond aphid Mordvilkoja vagabunda leaf galls
1150120 giant bark aphid Longistigma caryae The giant bark aphid is the largest aphid in North America. During December 2001 and through most of March 2002, an outbreak of this aphid was found covering about the eastern quarter of Texas. They mainly attacked oak trees, especially live oak and water oak. Natural enemies, such as lady beetles, played an important role in controlling aphid populations. During winter months when temperatures are cold, predator and parasite insects are not very active, and this may be the reason aphid populations became so large early in 2002.
1204124 periodical cicada Magicicada spp. ventral view of abdomen - tredecassini
1748035 cicadas flagging
1626061 honeylocust plant bug Diaphnocoris chlorionis These stunted and deformed leaves were caused by early spring feeding.
2666011 southern pecan leaf phylloxera Phylloxera russelae galls caused by this species are wart-like
1247166 hickory gall phylloxera Phylloxera caryaecaulis 1984
1325052 honeylocust plant bug Diaphnocoris chlorionis Leaf twisting and chlorosis associated with feeding injuries
1541789 treehoppers
1541686 sycamore lace bug Corythucha ciliata
1541373 plant bug Lopidea robiniae
1541374 plant bug Lopidea robiniae
1541375 plant bug Lopidea robiniae
1540696 European fruit lecanium Parthenolecanium corni
1540707 European fruit lecanium Parthenolecanium corni
1540708 European fruit lecanium Parthenolecanium corni
1540715 elm cockscombgall aphid Colopha ulmicola
2109070 tuliptree scale Toumeyella liriodendri females
1361124 lace bugs Corythucha spp. Lace bugs possess a hood-like extension of the pronotum that covers the head
1204116 periodical cicada Magicicada spp. eggs with fully developed embryos - note the eyespots
1468266 lecanium scales Coccus spp.
5385943 woolly maple aphid Neoprociphilus aceris on Caddo sugar maple; May 20, 2008
1204114 periodical cicada Magicicada spp. ventral view of female, note the ovipositor at the rear of the abdomen
1476076 hackberry nipplegall maker Pachypsylla celtidismamma Late instar nymph exposed within gall
1476077 hackberry nipplegall maker Pachypsylla celtidismamma late instar nymph exposed with gall
1476078 hackberry nipplegall maker Pachypsylla celtidismamma newly emerged adult next to gall
1476079 hackberry nipplegall maker Pachypsylla celtidismamma newly emerged adult next to gall
1476084 boxelder aphid Periphyllus negundinis
1476085 elm leaf aphid Tinocallis ulmifolii nymph of an alate form with wing pads
1476086 elm leaf aphid Tinocallis ulmifolii
1476088 poplar twig gall aphid Pemphigus populiramulorum gall produced on cottonwood twig
1476090 lettuce root aphid Pemphigus bursarius gall produced on popular petiole
1476100 oak phylloxerids Phylloxera spp. large colony on aspen
5424142 poplar leaf aphid Chaitophorus populicola
5053062 beech scale Cryptococcus fagisuga Heavy infestation of Cryptococcus fagisuga scale on American beech
5423952 psyllid Acizzia jamatonica An exotic psyllid specific to mimosa (Albizia) that is now widely distributed throughout the southeastern United States.
1546145 oak treehopper Platycotis vittata treehoppers on chestnut oak.
1549378 spiny witchhazel gall aphid Hamamelistes spinosus
1543384 birch lace bug Corythucha pallipes
1543385 birch lace bug Corythucha pallipes
1543381 alder lace bug Corythucha pergandei
1543382 alder lace bug Corythucha pergandei
1543383 birch lace bug Corythucha pallipes
1543493 oak lace bug Corythucha arcuata
1543431 elm lace bug Corythucha ulmi
1543427 elm lace bug Corythucha ulmi
1543386 birch lace bug Corythucha pallipes
1543529 sycamore lace bug Corythucha ciliata
1543517 sycamore lace bug Corythucha ciliata
1543524 sycamore lace bug Corythucha ciliata
1543526 sycamore lace bug Corythucha ciliata
1543522 sycamore lace bug Corythucha ciliata
1543515 sycamore lace bug Corythucha ciliata
1543511 sycamore lace bug Corythucha ciliata
1543513 sycamore lace bug Corythucha ciliata
1543514 sycamore lace bug Corythucha ciliata
1543510 sycamore lace bug Corythucha ciliata
1543509 sycamore lace bug Corythucha ciliata
1543494 oak lace bug Corythucha arcuata
1543491 oak lace bug Corythucha arcuata
1543489 oak lace bug Corythucha arcuata
1543490 oak lace bug Corythucha arcuata
1543484 oak lace bug Corythucha arcuata
1543482 oak lace bug Corythucha arcuata
5410735 maple aphid Periphyllus aceris
5410736 maple aphid Periphyllus aceris
5410731 maple aphid Periphyllus aceris
5410732 maple aphid Periphyllus aceris
5410733 maple aphid Periphyllus aceris
5410734 maple aphid Periphyllus aceris
5410729 maple aphid Periphyllus aceris
5410730 maple aphid Periphyllus aceris
1549410 woolly alder aphid Prociphilus tessellatus
1549174 giant bark aphid Longistigma caryae
1549168 giant bark aphid Longistigma caryae
1549039 aphids
1549040 aphids
1549037 aphids
1549038 aphids
1549035 aphids
1549036 aphids
5048083 beech scale Cryptococcus fagisuga Cryptococcus fagisuga on American beech.
5048065 beech scale Cryptococcus fagisuga Cottony coverings of Cryptococcus fagisuga, the beech scale.
5048076 beech scale Cryptococcus fagisuga Cryptococcus fagisuga on American beech.
5048079 beech scale Cryptococcus fagisuga Cryptococcus fagisuga on American beech.
5048095 beech scale Cryptococcus fagisuga Cryptococcus fagisuga on American beech.
5048086 beech scale Cryptococcus fagisuga Beech bark disease. A severe infestation of Cryptococcus fagisuga in Ludington State Park, MI.
5048096 beech scale Cryptococcus fagisuga Cryptococcus fagisuga on American beech.
5048097 beech scale Cryptococcus fagisuga Cryptococcus fagisuga on American beech.
5049001 beech scale Cryptococcus fagisuga Cryptococcus fagisuga on American beech.
5049002 beech scale Cryptococcus fagisuga Cryptococcus fagisuga on American beech.
5049003 beech scale Cryptococcus fagisuga Cryptococcus fagisuga on American beech.
5049004 beech scale Cryptococcus fagisuga Cryptococcus fagisuga on American beech.
5382067 hackberry nipplegall maker Pachypsylla celtidismamma Psyllid galls that have been decapped by fox squirrels (Sciuris niger), that eat the mature nymphs in late summer.  After feeding, the leaves are cut and drop to the ground.  
5382068 hackberry nipplegall maker Pachypsylla celtidismamma Fallen leaves cut by fox squirrels (Sciuris niger) after they have decapped galls of the hackberry nipplegall maker and eaten the mature nymphs.  
5382066 hackberry nipplegall maker Pachypsylla celtidismamma Psyllid galls that have been decapped by fox squirrels (Sciuris niger), that eat the mature nymphs in late summer.  After feeding, the leaves are cut and drop to the ground.  
5062057 woolly alder aphid Prociphilus tessellatus
5062058 woolly alder aphid Prociphilus tessellatus
5062059 woolly alder aphid Prociphilus tessellatus
5062060 woolly alder aphid Prociphilus tessellatus
5062061 woolly alder aphid Prociphilus tessellatus
5062062 woolly alder aphid Prociphilus tessellatus
5380092 dog-day cicada Tibicen spp.
5380093 dog-day cicada Tibicen spp.
5380094 dog-day cicada Tibicen spp.
5380095 dog-day cicada Tibicen spp.
5380098 dog-day cicada Tibicen spp.
5386122 oak lace bug Corythucha arcuata
5386123 oak lace bug Corythucha arcuata
5386124 oak lace bug Corythucha arcuata
5386125 oak lace bug Corythucha arcuata
5386126 oak lace bug Corythucha arcuata
5386127 oak lace bug Corythucha arcuata
5386128 oak lace bug Corythucha arcuata
5203001 woolly apple aphid Eriosoma lanigerum Distorted leaf; photo taken in early June.
5382303 periodical cicada Magicicada septendecim egg laying scars
5382304 periodical cicada Magicicada septendecim 17-year periodical cicada damage. Flagging.
5382306 periodical cicada Magicicada septendecim
5382433 honeylocust leafhopper Macropsis fumipennis Insects and damage to foliage
0758006 aphids Aphid colony on lupine
0758083 beech scale Cryptococcus fagisuga Beech tree with chlorotic foliage, a symptom of beech bark disease.
0758084 beech scale Cryptococcus fagisuga Close up of scale insect, Cryptococcus fagisuga on beech bark.
1294005 periodical cicada Magicicada septendecim June 2006; Dead adults. Washington DC. 2004
1294003 periodical cicada Magicicada septendecim 2006
1294001 periodical cicada Magicicada septendecim June 2006
1294002 periodical cicada Magicicada septendecim 2006
5380096 dog-day cicada Tibicen spp.
5380097 dog-day cicada Tibicen spp.
5380091 dog-day cicada Tibicen spp.
1263055 black scale Parasaissetia nigra On mangrove stem
1263044 Japanese maple scale Lopholeucaspis japonica On Zelkova stem.
5369697 Japanese maple scale Lopholeucaspis japonica
5305013 predatory stink bug Podisus placidus Mating pair. Female is feeding on larva of cottonwood leaf beetle
5304006 aphid Tetraneura spp.
5304007 aphid Tetraneura spp.
5304008 aphid Tetraneura spp.
5303021 European elm scale Gossyparia spuria Mature adult females packed into bark cracks
5304002 European elm scale Gossyparia spuria Sooty mold characteristic of chronic infestation by European elm scale in sites with little rainfall.
5304003 European elm scale Gossyparia spuria Sooty mold characteristic of chronic infestation by European elm scale in sites with little rainfall.
1325085 oystershell scale Lepidosaphes ulmi recently settled crawlers
1325089 oystershell scale Lepidosaphes ulmi recently settled crawlers
1476040 elm cockscombgall aphid Colopha ulmicola Characteristic leaf galls
5209062 woolly apple aphid Eriosoma lanigerum Leaf curling injury on a hybrid elm
5209063 woolly apple aphid Eriosoma lanigerum Late spring colony in leaf curl
5210014 poplar vagabond aphid Mordvilkoja vagabunda Dried 'pseudo-gall' produced in twigs of host plant.
1520083 hemlock woolly adelgid Adelges tsugae HWA on hemlock needles
5203003 woolly elm aphid Eriosoma americanum American elm leaf distorted by woolly elm aphid; Photo taken in Ramsey Co., MN, June 2006
5203004 woolly elm aphid Eriosoma americanum American elm leaf distorted by woolly elm aphid; photo taken in ramsey Co., MN, June 2006
5203005 woolly elm aphid Eriosoma americanum Elm leaf distorted by woolly elm aphids; Photo taken in Ramsey Co., MN, June 2006
5203022 hackberry nipplegall maker Pachypsylla celtidismamma Galls caused by the hackberry nipple gall maker on the underside of a hackberry leaf; Photo taken in Ramsey Co., MN
5203023 hackberry nipplegall maker Pachypsylla celtidismamma galls caused by the hackberry nipple gall maker on the underside of a hackberry leaf; Photo taken in Ramsey Co., MN
5203024 hackberry nipplegall maker Pachypsylla celtidismamma Single gall
1626054 boxwood psyllid Cacopsylla buxi Nymphs, covered with a white waxy material, feed on the terminal leaves as they unfold in the spring.
5177066 calico scale Eulecanium cerasorum
5174028 oak treehopper Platycotis vittata The greenish one is the mother of the brightly colored males. These 3 males were the survivors of about 20 or more nymphs. "Mom" stayed with them until early November.
5177065 San Jose scale Diaspidiotus perniciosus
5133020 soft scales Parthenolecanium spp.
2721078 sweetgum scale Diaspidiotus liquidambaris sweetgum scale "upper leaf surface"
5123047 kermes scales Kermes spp. Collector: R.Breckenridge Date of photograph or collection: 04/12/1983
5123048 kermes scales Kermes spp. Collector: R.Breckenridge Date of photograph or collection: 04/12/1983
5123049 kermes scales Kermes spp. Collector: R.Breckenridge Date of photograph or collection: 04/12/1983
5123050 kermes scales Kermes spp. Collector: R.Penrose Date of photograph or collection: 04/26/1977
5123051 kermes scales Kermes spp. Collector: R.Penrose Date of photograph or collection: 04/26/1977
5123052 kermes scales Kermes spp. Collector: R.Penrose Date of photograph or collection: 04/26/1977
5123040 kermes scales Kermes spp. Collector: R.J.Gill Date of photograph or collection: 05/30/1981
5123041 kermes scales Kermes spp. Collector: R.J.Gill Date of photograph or collection: 05/30/1981
5123042 kermes scales Kermes spp. Collector: R.J.Gill Date of photograph or collection: 05/30/1981
5123043 kermes scales Kermes spp. Collector: R.J.Gill Date of photograph or collection: 05/30/1981
5123044 kermes scales Kermes spp. Collector: R.J.Gill Date of photograph or collection: 05/30/1981
5123045 kermes scales Kermes spp. Collector: R.J.Gill Date of photograph or collection: 05/30/1981
5123046 kermes scales Kermes spp. Collector: R.J.Gill Date of photograph or collection: 05/30/1981
5121039 armored scale Hemiberlesia diffinis Collector: R.J.Gill Date of photograph or collection:02/1975
5118003 armored scale Diaspidiotus aesculi Collector: R.J. Gill Date of photograph or collection: 03/19/1982
1475017 hackberry nipplegall maker Pachypsylla celtidismamma adult recently emerged from gall and adjacent to nymphal skins
5022095 hemlock woolly adelgid Adelges tsugae
5022096 hemlock woolly adelgid Adelges tsugae
5084027 little black and green willow aphid Chaitophorus viminalis
5084050 hackberry blistergall psyllid Pachypsylla celtidisvesiculum near developing galls of hackberry nipple maker psyllid
5083073 leafcurl ash aphid Meliarhizophagus fraxinifolii twig curling produced by infestation of leafcurl ash aphid
5083074 leafcurl ash aphid Meliarhizophagus fraxinifolii Clumped leaves at terminals produced by earlier aphid injury are visible during leaf drop in fall.
5083042 lace bugs Teleonemia spp. and stippling injury on upper leaf surface. Photo taken September 4, 2006
5084038 reddish brown poplar aphid Pterocomma populifoliae small colony on poplar twig
5084049 reddish brown poplar aphid Pterocomma populifoliae mother giving birth
5083039 lace bugs Teleonemia spp. with nymph and tar spot droppings. Photo taken September 4, 2006
5083040 lace bugs Teleonemia spp. photo taken September 4, 2006
5019028 white peach scale Pseudaulacaspis pentagona
5019017 cottony maple scale Pulvinaria innumerabilis
5019011 periodical cicada Magicicada septendecim
5019012 periodical cicada Magicicada septendecim emergence holes and dead adults
5019013 periodical cicada Magicicada septendecim larva just before emergence
5019014 periodical cicada Magicicada septendecim
5019015 periodical cicada Magicicada septendecim
5019016 periodical cicada Magicicada septendecim
5019004 periodical cicada Magicicada spp. eggs inside twig
5019005 periodical cicada Magicicada spp. oviposition slits in branch
5019006 periodical cicada Magicicada spp.
5019007 periodical cicada Magicicada spp.
5019009 periodical cicada Magicicada spp.
5019010 periodical cicada Magicicada spp. oviposition slits in branch
5019031 beech scale Cryptococcus fagisuga
5018084 beech blight aphid Grylloprociphilus imbricator
5018093 periodical cicada Magicicada spp.
5018094 periodical cicada Magicicada spp. damaged twigs
5018099 periodical cicada Magicicada spp.
5018100 periodical cicada Magicicada spp.
5019001 periodical cicada Magicicada spp.
5019002 periodical cicada Magicicada spp.
5018085 Norway maple aphid Periphyllus lyropictus
5018086 woolly alder aphid Prociphilus tessellatus
5018087 woolly alder aphid Prociphilus tessellatus
5018088 woolly alder aphid Prociphilus tessellatus with ant
5046099 beech scale Cryptococcus fagisuga and tarry spots
2182001 European elm leafcurl aphid Eriosoma ulmi
2181100 European elm scale Gossyparia spuria
2182002 European elm scale Gossyparia spuria
2183040 periodical cicada Magicicada septendecim
2182012 oystershell scale Lepidosaphes ulmi
2182013 oystershell scale Lepidosaphes ulmi
2183085 oystershell scale Lepidosaphes ulmi
2182007 European fruit lecanium Parthenolecanium corni
2182008 European fruit lecanium Parthenolecanium corni
2182009 European fruit lecanium Parthenolecanium corni close view
2181094 cottony maple scale Pulvinaria innumerabilis
2181095 cottony maple scale Pulvinaria innumerabilis
2181096 cottony maple scale Pulvinaria innumerabilis
5042089 beech scale Cryptococcus fagisuga crawler
5042090 beech scale Cryptococcus fagisuga crawlers
5019008 periodical cicada Magicicada spp. Eggs from Brood X in Dauphin County, PA
5024020 willow scale Diaspidiotus gigas mixed life stages on aspen branch
2200069 honeylocust leafhopper Macropsis fumipennis Adult on honeylocust twig. May 27, 2006
0758082 beech scale Cryptococcus fagisuga Bark of American beech with symptoms of beech bark disease.
1468314 periodical cicada Magicicada spp.
1468313 dog-day cicada Tibicen spp. June 2, 1977
1468316 dog-day cicada Tibicen spp. June 2, 1977
1468265 cottony maple scale Pulvinaria innumerabilis
1468268 oystershell scale Lepidosaphes ulmi
1468272 oystershell scale Lepidosaphes ulmi
1468269 bean aphid Aphis fabae
1468273 European elm scale Eriococcus spuria
1470115 oystershell scale Lepidosaphes ulmi
1470156 oystershell scale Lepidosaphes ulmi
1470157 oystershell scale Lepidosaphes ulmi
1470158 oystershell scale Lepidosaphes ulmi
1626008 woolly alder aphid Prociphilus tessellatus Some aphids produce a protective coat of white waxy filaments.
1419466 woolly alder aphid Prociphilus tessellatus Early attack
1398045 sycamore lace bug Corythucha ciliata
1455117 leafcurl plum aphid Brachycaudus helichrysi Severe leaf curling
1394078 periodical cicada Magicicada spp. protection
1394021 poplar vagabond aphid Mordvilkoja vagabunda
1394022 poplar vagabond aphid Mordvilkoja vagabunda
2512011 periodical cicada Magicicada septendecim 2004 Brood X. Flagging.
2512012 periodical cicada Magicicada septendecim 2004 Brood X. Empty larval cases
2512013 periodical cicada Magicicada septendecim in twigs. 2004 Brood X.
2512014 periodical cicada Magicicada septendecim Ovipositing scar. 2004 Brood X
1247048 sycamore lace bug Corythucha ciliata 1973.
1265117 calico scale Eulecanium cerasorum
1626060 honeylocust plant bug Diaphnocoris chlorionis Honeylocust and black locust trees are susceptible to infestation by the honeylocust plant bug.
1626063 lace bugs Corythucha spp. Prior activities are confirmed by black, shiny spots of excrement and spiny cast skins on the underside of damaged leaves.
1626055 boxwood psyllid Cacopsylla buxi The familiar result of an infestation is stunted twigs and cupped leaves.
1626058 leaf-footed bugs Leptoglossus spp. Several species of leaf-footed bugs, pictured here on the left, and most stink bugs, here on the right, are plant feeders.
1626036 obscure scale Melanaspis obscura Primarily found on oaks, this pest causes dieback of branches, limbs, and sometimes entire trees. Inexperienced observers often mistake these scales for flakes of bark even at close range.
1626048 whiteflies Whiteflies often go unnoticed even when they occur in large numbers, because they congregate on the underside of the leaves. When the leaves are disturbed, the adults fly about, but they quickly settle again when the disturbance has passed.
1626049 whiteflies Adult whiteflies are only about 1/16 inch long. Their two pairs of broadly rounded wings are covered with a white waxy powder.
1626050 whiteflies Nymphs are small, non-motile, and nearly the same color as the foliage.
1626006 aphids Aphid feeding often causes leaves to curl and become deformed. Once this happens, control is very difficult because aphids inside the curled leaves are protected from contact with the insecticide.
1626007 aphids Aphids excrete a sugary waste produce called honeydew. Notice the clear drop on the left side of this picture. Ants, bees, and wasps collect honeydew for food. Black and brown fungi, appropriately called sooty molds, cover leaves and other objects below aphid colonies where honeydew collects.
1626014 spider mites Spider mites are almost microscopic. Most are about the size of a period made by a typewriter.
1626015 spider mites This type of feeding causes a fine flecking or stippling on the foliage.
1626016 spider mites Where large populations exist, the injured areas coalesce and entire leaves become yellow or bronzed.
1254054 mealybugs Fort Collins, CO.
1254055 mealybugs Infestation on bark, Fort Collins, CO.
1254062 hackberry bud gall maker Pachypsylla celtidisgemma Fort Collins, CO.
1254050 oystershell scale Lepidosaphes ulmi Fort Collins, CO.
1254052 European elm scale Eriococcus spuria Black sooty mold growing on honeydew deposited by scale infestations, Colorado State University campus, Fort Collins, CO.
1254051 European elm scale Eriococcus spuria Fort Collins, CO.
1243101 aster leafhopper Macrosteles quadrilineatus
1326234 giant willow aphid Tuberolachnus salignus Colony on Willow stem.
1326221 elm leaf aphid Tinocallis ulmifolii Winged and wingless adults. American Elm.
1326213 rosy apple aphid Dysaphis plantaginea Colony on Apple.
1326148 common falsepit scale Lecanodiaspis prosopidis Mature scales on green ash branch.
1326214 apple aphid Aphis pomi Colony found on Apple and crabapple.
1325081 oystershell scale Lepidosaphes ulmi Crawlers present after egg hatch
1325057 hackberry nipplegall maker Pachypsylla celtidismamma Large swellings produced by nipplegall maker. Smaller swellings by hackberry blistergall psyllid
1234016 pecan spittlebug Clastoptera achatina
1326113 European elm scale Eriococcus spuria Overwintering forms on twigs
1326117 European elm scale Eriococcus spuria Male cocoons
1326118 European elm scale Eriococcus spuria Mature female and crawlers
1325055 honeylocust plant bug Diaphnocoris chlorionis
1325063 honeylocust plant bug Diaphnocoris chlorionis
1325067 currant aphid Cryptomyzus ribis
1325071 currant aphid Cryptomyzus ribis
1325044 honeylocust plant bug Diaphnocoris chlorionis crown thinning produced by feeding injury
1325048 honeylocust plant bug Diaphnocoris chlorionis
1325056 rough stink bug Brochymena quadripustulata
1325059 hackberry nipplegall maker Pachypsylla celtidismamma
1325060 walking cicada Okanagana synodica
1325042 hackberry nipplegall maker Pachypsylla celtidismamma nymph of hackberry blistergall psyllid (smaller) and hackberry nipplegall maker psyllid exposed from galls
1325045 hackberry nipplegall maker Pachypsylla celtidismamma
1325046 hackberry nipplegall maker Pachypsylla celtidismamma
1325053 hackberry nipplegall maker Pachypsylla celtidismamma
1325054 hackberry bud gall maker Pachypsylla celtidisgemma
1325058 hackberry bud gall maker Pachypsylla celtidisgemma
1325041 hackberry blistergall psyllid Pachypsylla celtidisvesiculum
1325049 hackberry blistergall psyllid Pachypsylla celtidisvesiculum
1325050 hackberry blistergall psyllid Pachypsylla celtidisvesiculum with nymphal skins left after emergence from gall
1325094 fletcher scale Parthenolecanium fletcheri
1325098 fletcher scale Parthenolecanium fletcheri
1325093 oystershell scale Lepidosaphes ulmi of aspen
1325097 oystershell scale Lepidosaphes ulmi flipped to expose eggs
1325051 honeylocust leafhopper Macropsis fumipennis
1325019 twospotted spider mite Tetranychus urticae
1325020 twospotted spider mite Tetranychus urticae
1325043 buffalo treehopper Stictocephala bisonia
1325047 buffalo treehopper Stictocephala bisonia oviposition scars
1325037 ash plant bug Tropidosteptes amoenus nymphs and injury
1325038 ash plant bug Tropidosteptes amoenus
1325039 ash plant bug Tropidosteptes amoenus
3066037 woolly alder aphid Prociphilus tessellatus on European black alder
3066038 oak phylloxerids Phylloxera spp. leaves curled and deformed on Nuttall oak
1223104 twospotted spider mite Tetranychus urticae
1223063 black pecan aphid Melanocallis caryaefoliae
1223060 yellow pecan aphid Monelliopsis pecanis
1223061 yellow pecan aphid Monelliopsis pecanis laying egg
1223055 blackmargined aphid Monellia caryella
1223074 pecan spittlebug Clastoptera achatina
1428102 European elm scale Eriococcus spuria
1428103 European elm scale Eriococcus spuria on the Colorado State University campus covered with black sooty mold indicative of infestation by European elm scale.
1122002 calico scale Eulecanium cerasorum
1122003 calico scale Eulecanium cerasorum
1122004 calico scale Eulecanium cerasorum parasite exit hole
1122005 calico scale Eulecanium cerasorum
1122020 tuliptree scale Toumeyella liriodendri on magnolia
1122021 white peach scale Pseudaulacaspis pentagona
1122023 white peach scale Pseudaulacaspis pentagona
1122024 white peach scale Pseudaulacaspis pentagona male scales on bark
1428101 oystershell scale Lepidosaphes ulmi
3413087 yellow pecan aphid Monelliopsis pecanis
1435154 black pecan aphid Melanocallis caryaefoliae
1435155 pecan spittlebug Clastoptera achatina white, frothlike mass of spittle produced by the immature nymphs
1150142 giant bark aphid Longistigma caryae As aphids feed, they excrete a sticky, clear liquid known as honeydew that often forms a sticky coating on automobiles, picnic tables, lawn furniture, and plants underneath plants where aphids are feeding. A gray-black, sooty mold soon begins to grow on the sugar-rich honeydew, and it not only blocks sunlight and disrupts photosynthesis, but it can damage the finish on cars, chairs, tables or other objects.
1150115 giant bark aphid Longistigma caryae The giant bark aphid is the largest aphid in North America. During December 2001 and through most of March 2002, an outbreak of this aphid was found covering about the eastern quarter of Texas. They mainly attacked oak trees, especially live oak and water oak. Natural enemies, such as lady beetles, played an important role in controlling aphid populations. During winter months when temperatures are cold, predator and parasite insects are not very active, and this may be the reason aphid populations became so large early in 2002.
1150117 giant bark aphid Longistigma caryae The giant bark aphid is the largest aphid in North America. During December 2001 and through most of March 2002, an outbreak of this aphid was found covering about the eastern quarter of Texas. They mainly attacked oak trees, especially live oak and water oak. Natural enemies, such as lady beetles, played an important role in controlling aphid populations. During winter months when temperatures are cold, predator and parasite insects are not very active, and this may be the reason aphid populations became so large early in 2002.
1419472 leafcurl ash aphid Meliarhizophagus fraxinifolii to white ash
1419482 leafcurl ash aphid Meliarhizophagus fraxinifolii to White ash
1419485 leafcurl ash aphid Meliarhizophagus fraxinifolii with lady beetle predator
1419477 leafcurl ash aphid Meliarhizophagus fraxinifolii
1430167 periodical cicada Magicicada spp.
1430170 periodical cicada Magicicada septendecim mating
1430168 periodical cicada Magicicada septendecim
1430169 periodical cicada Magicicada septendecim
1860071 dog-day cicada Tibicen spp.
1204109 dog-day cicada Tibicen spp.
1204111 dog-day cicada Tibicen spp.
1204112 dog-day cicada Tibicen spp. typical cast skin
1204115 periodical cicada Magicicada spp.
1204125 periodical cicada Magicicada spp. ventral view of abdomen - tredecim
1204126 periodical cicada Magicicada spp. Flap-like opercula on the ventral surface of the first abdominal segment
1204108 periodical cicada Magicicada spp. dead males collected from the ground beneath trees about two weeks after emergence
1204113 periodical cicada Magicicada spp.
1204117 periodical cicada Magicicada spp. newly hatched
1204118 periodical cicada Magicicada spp. close-up of newly laid egg
1204119 periodical cicada Magicicada spp. grooves in which eggs are deposited
1204120 periodical cicada Magicicada spp.
1204122 periodical cicada Magicicada spp.
1204123 periodical cicada Magicicada spp. ventral view of abdomen - tredecula
2666050 yellow pecan aphid Monelliopsis pecanis honeydew
2666047 pecan spittlebug Clastoptera achatina spittle mass at base of nut cluster
1204099 periodical cicada Magicicada spp. typical rows of cicada eggs
1204101 periodical cicada Magicicada spp. female ovipositing in hardwood twig
1204102 periodical cicada Magicicada spp. exit holes left by nymphs emerging from the soil
1204103 periodical cicada Magicicada spp. typical cast skins of newly emerged nymphs
1204104 periodical cicada Magicicada spp. operculum removed to expose the white membrane and sound-producing timbal
1204105 periodical cicada Magicicada spp. female ovipositing in hardwood twig
1204106 periodical cicada Magicicada spp. closeup of oviposition slits
1204049 spined soldier bug Podisus maculiventris
0014093 sugarberry psyllid Tetragonocephela flava
0014284 tuliptree scale Toumeyella liriodendri showing adults and crawlers.
0014096 tuliptree scale Toumeyella liriodendri female with crawlers.
0014099 spittlebugs or froghoppers spittle mass
3037028 cicadas
3066056 spider mites to leaves
3066048 oak leaf aphids Myzocallis spp.
3066043 leafcurl ash aphid Meliarhizophagus fraxinifolii
3066044 leafcurl ash aphid Meliarhizophagus fraxinifolii infested terminal
3066045 poplar leaf aphid Chaitophorus populicola
3067076 sycamore lace bug Corythucha ciliata
3067078 sycamore lace bug Corythucha ciliata
3066032 sugarberry psyllid Tetragonocephela flava decline leaf curl
3056023 oak pit scale Asterolecanium minus
3056025 oak pit scale Asterolecanium minus
3056022 kermes scales Kermes spp. on white oak
0886016 beech blight aphid Grylloprociphilus imbricator Sooty mold below
3046009 lecanium scales Coccus spp.
3046010 lecanium scales Coccus spp.
2253021 kermes scales Kermes spp.
0886017 woolly alder aphid Prociphilus tessellatus
4836018 birch lace bug Corythucha pallipes close-up of an adult showing the lacelike forewings
4836019 birch lace bug Corythucha pallipes close-up of adult showing the lacelike wings
4836025 honeylocust plant bug Diaphnocoris chlorionis and immature feed on foliage, causing chlorosis, leaf distortion and spotting
1791050 predacious stink bug Apateticus cynicus early season entomophage of caterpillars and other soft-bodied insects
1791063 whiteflies small black specks with white borders
1791052 oak treehopper Platycotis vittata phloem feeder on twigs, occur in groups often accompanied by adult female. Note adult to right. An adult flatid in upper right of photo
1748009 pine and spruce adelgids Pineus spp.
1748058 pine tortoise scale Toumeyella parvicornis see also 1748060
1748060 pine tortoise scale Toumeyella parvicornis see also 1748058
1748069 cicadas
1748015 aphids on locust
1748034 cicadas flagging
1669004 cicadas
0907024 oystershell scale Lepidosaphes ulmi infestations are usually confined to small portions of trees
1669001 periodical cicada Magicicada septendecim
1669003 periodical cicada Magicicada septendecim oviposition damage
0907025 birch lace bug Corythucha pallipes on birch work from the underside to suck sap from leaves, the upper leaf surface becomes discolored and the lower surface becomes littered with excrement
1669012 sycamore lace bug Corythucha ciliata adult and feeding damage
0805049 European birch aphid Euceraphis punctipennis nymphs and feeding damage
0907053 woolly alder aphid Prociphilus tessellatus colony, covered with white, waxy strands
0488089 oak treehopper Platycotis vittata
0795081 tuliptree scale Toumeyella liriodendri
0590071 tuliptree aphid Illinoia liriodendri nymphs and adults
0488088 oak eriococcin Eriococcus quercus
0355012 cicadas

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