Key to the Families of North American Insects |
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Common terms and phrases
abdomen abdominal segments absent antennæ Antennæ inserted apex arista basal cell base beak beetles body bristles cerci closed club clypeus Coleoptera color constricted convex costa couplet crossveins cylindrical dilated Diptera discal cell dorsal segments elongate elytra eyes female femora five-jointed flattened fore wings four-jointed Front coxæ Front coxal cavities front leg fused grooved hairy head Hind coxæ Hind tibiæ hind wing immovably united insects Labrum larvæ Last joint less lobed male mandibles margin maxillæ maxillary palpi median membrane meso mesonotum mesosternum mesothorax Metamorphosis metathorax Middle coxæ middle tibiæ moths narrow ocelli oval ovipositor pair petiolate plates posterior prominent pronotum Prosternum prothorax pygidium radial cell rarely sclerite scutellum separated short side slender species spines stout strongly Subcosta and radius Suborder suture Tarsal claws tarsal joint tarsi tegulæ ten-jointed thickened third joint thorax three-jointed tibia tibiæ tibial spurs transverse triangular trochanters two-jointed ventral segments wingless wings usually