普通昆虫学课件-半翅目昆虫分类.pptVIP

Plant feeders, causes a yellow spotting of the leaf and falls off. 梨网蝽Stephanitis nashi、茶脊网蝽S. chinensis等 4．花蝽科Anthocoridae Small, elongate-oval, and somewhat flattened; Antenna 4-segmented, ocelli present; Beak 3-segmented; Front wing with distinctive embolium and cuneus; Vein very simple on membrane. 花蝽Flower bugs， or minute pirate bugs usually found on flowers. Most are predaceous, feeding on various small insects and insect eggs. Some species feed on plant juice or pollens. 5. 臭虫科Cimicidae Beak 3-segmented; Wings vestigial; Ectoparasites of birds and mammals; sucking blood. No ocelli. 臭虫Bed Bugs （四）蝽次目Pentatomorpha Front wings is typical hemelytra, without cuneus；mostly with 5+ veins at the membrane. Most species are plant feeders. 29 families，20 in China. 1．长蝽科Lygaeidae Antennae 4-segmented; beak 4-segmented; Ocelli present; Membrane with only 4 or 5 veins; Feed on seeds, sap of the host plant, and other insect. 长蝽Seed bugs 生活于地表和植物上，多嗜食种子。 高梁长蝽Dimorphopterus japonicus、小长蝽Nysius ericae、Lygaeus kalmii 2. 红蝽科Pyrrhocoridae Elongate-oval, usually brightly marked with red or brown and black； Ocelli lacking； Membrane with more branched veins and cells. 红蝽Red Bugs or Stainers. Feeding on fruits and seeds. 3．缘蝽科Coreidae Head narrower and shorter than pronotum; Membrane with many veins. 缘蝽Leaf-footed Bugs, Most are plant feeders, preferring the reproductive organs of plants. 粟缘蝽Liorhyssus hyalinus (Fabr.)、稻棘缘蝽Cletus punctiger Dallas 4. 盾蝽科Scutelleridae Scutellum very large, extending to the apex of the abdomen; Wings are visible only at the edge of scutellum. 盾蝽Shield-backed bugs 5. 同蝽科Acanthosomatidae Very similar to Pentatomidae, but are more elongated, triangular in shape, and tarsi 2-segmented. Mostly predaceous, some feed on woody plants (trees and shrubs). 5．蝽科Pentatomidae Antennae 5-segmented; Beak 4-segmented; Tarsi 3-segmented; Body shield-shaped; Scutellum large, triangular; Scent glands produce an unpleasant odor. 4500 species，360 in C