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CHAP PAGE I Introduction
Alphabetical List of Insect Orders
Structure and Lifehistory of Insects
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abdomen abdominal legs abdominal segments absent adult insects alder-flies antennae aphids aquatic beak bees and wasps biting type body bristle-like bristle-tails British species bugs butterflies and moths caterpillars cerci characteristic cocoon coleoptera collembola coloured compound eyes Controller of H.M. cross-veins diplura diptera dragon-flies eggs EPHEMEROPTERA example feathery Features of Appearance feed female Fisheries Advisory Leaflet flattened fleshy flies fore fore-wings gall gills grasshoppers ground beetle grubs H.M. Stationery Office hairs hairy head hemiptera hind pair hind-wings horny hymenoptera instar jaws Keys labium large number larvae Larvae of coleoptera legless Lepidoptera long and slender maggot male may-fly mecoptera membranous Metamorphosis complex midge modified moult mouth-parts neuroptera nymphs organs orthoptera pairs of wings parasites pests plants plecoptera PROTURA pupa Recognition resemble rove beetles saw-fly short skin spiracles springtails strepsiptera sub-orders sucking superfamily thoracic legs thorax thread-like thrip thysanura trichoptera tube usually veins vestigial weevils wingless young