A General Textbook of Entomology: Including the Anatomy, Physiology, Development and Classification of Insects

3-jointed abdominal segments absent adult anal antennæ ants apex appendages apterous Apterygota aquatic basal bees body British canal cavity cells cerci chitinized cocoon Coleoptera colour compound eyes consists coxæ cuticle developed Diptera distal dorsal duct ecdysis eggs elongate elytra exhibit extremely female fore-wing frequently ganglia ganglion genera genus gills glands habits head Hemiptera hind hind-wings host Hymenoptera imago insects instar joints Journ known labial labium large number larva larvæ latter legs Lepidoptera lobe male Malpighian tubes mandibles maxillæ maxillary median membrane mid-intestine mouth-parts muscles nerve nests nymphs occur ocelli organs Orthoptera ovarioles ovipositor pairs of spiracles palpi parasites posterior present proboscis prothorax pupa pupæ pupal R₁ region resemble salivary sclerites setæ sexes species spiracles sternum structure surface suture tergum terminal thorax tibiæ tracheal system Trans transverse usually veins venation ventral vestigial vide wings wiss workers Zeits Zool