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Chapter Page I External Anatomy i
Development and Life Cycle
9 other sections not shown
2-segmented abdominal segments acid adult anal animal antennae aphids appear aquatic bees beetles belong blood body branches bristles butterflies caterpillars cavity cells cerci chiefly colored commonly compound eyes comprises crickets crossveins cubitus cycle developed Diptera dorsal eggs Entomology Ephemeroptera epidermis families feed female flies fluid Folsom and Wardle fore wing forked forms fossil fused ganglion genera genus germ band glands grasshoppers groove habit hemimetabolic Hemiptera hind wings holometabolic Homoptera Hymenoptera hypopharynx insects labium larvae larval stages legs Lepidoptera lobes longitudinal veins male mandibles margin maxillae maxillary membrane mid-gut moths moult mouthparts muscles nerve nest neuromeres Neuroptera North American species nymphal stages nymphs occur Odonata organs ovipositor pair palps parasitic pests plants posterior primitive prothorax Protura pupa pupal radial sector skin so-called spiracles structure sub-family Sub-order subcosta super-family surface tarsal termed termites thorax tibiae tissue tracheae Trichoptera tube usually ventral vestigial wasps wing venation wingless