Orders

Adult Coleoptera Features

Body Size

2. Large platelike hind coxae that cover most of abdomen.......................... (crawling water beetles) HALIPLIDAE
Coxae not greatly enlarged...................3 6. Less than 10 mm long: enlarged tibiae black and shiny..(hister beetles) HISTERIDAE
Not with above combination of characters.......................7 17. Third tarsal segment bilobed.......(leaf beetles) CHRYSOMELIDAE
Third tarsal segment normal in shape...(checkered beetles) CLERIDAE 18. Hind trochanters with greatly enlarged lobes.....19
Hind trochanters without such enlarged lobes..... 20 19. Clypeus wider than distance between antennal sockets head usually broader than prothorax .....(tiger beetles) CICINDELIDAE
Clypeus narrower than distance between antennal sockets head usually narrower than prothorax ...... . (ground beetles) CARABIDAE 21. Three terga usually exposed . (carrion beetles) SILPHIDAE
Five or more terga exposed (rove beetles) STAPHYLINIDAE 24. Antennae elbowed; mandibles greatly enlarged in males ...............................(stag beetles) LUCANIDA
Antennae not elbowed ...............................25 30. Rounded body with long legs; legs with yellow hair .......(spider beetles) PTINIDAE
Not as above …………………………………………………..31