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    Piercing and Sucking Insects (11)
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Hemiptera

Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Atelocerata
Class: Hexapoda (including Insecta)
Infraclass: Neoptera
Subclass: Pterygota
Order: Hemiptera
Remove Filters: Hardwood(X) United States(X) John A. Weidhass(X)
19 Images of 13 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
1626051 whiteflies Immature whiteflies may be confused with scale insects, but are much smaller.
1626091 hickory gall phylloxera Phylloxera caryaecaulis A phylloxeran causes hickory leaf stem gall on the leaves, petioles, and twigs of hickory.
1626026 magnolia scale Neolecanium cornuparvum The largest scale insect in the United States.
1626025 oak lecanium Parthenolecanium quercifex Dead females on the twig and settled crawlers on the leaf.
1626061 honeylocust plant bug Diaphnocoris chlorionis These stunted and deformed leaves were caused by early spring feeding.
1626054 boxwood psyllid Cacopsylla buxi Nymphs, covered with a white waxy material, feed on the terminal leaves as they unfold in the spring.
1626008 woolly alder aphid Prociphilus tessellatus Some aphids produce a protective coat of white waxy filaments.
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.
1626053 psyllids Some species are serious pests, but many are simply nuisances because the honeydew they produce leads to unsightly crusts of black sooty mold.
1626055 boxwood psyllid Cacopsylla buxi The familiar result of an infestation is stunted twigs and cupped leaves.
1626057 boxelder bug Boisea trivittata
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.
1626060 honeylocust plant bug Diaphnocoris chlorionis Honeylocust and black locust trees are susceptible to infestation by the honeylocust plant bug.
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.
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.

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