Orders

Adult Hymenoptera Features

Waist

1. Slender waist (petiole) between abdominal segments 1 and 2 absent........... Suborder SYMPHYTA, 2
Slender waist (petiole) between abdominal segments and 2 present..........Suborder APOCRITA, 6

7. Wing venation reduced to single anterior vein; antennae elbowed....8
Wing venation reduced, but several veins present; antennae not elbowed.........(gall wasps) CYNIPIDAE ..(chalcidid wasps) CHALCIDIDAE 11. One recurrent vein...(braconids) BRACONIDAE
Two recurrent veins...(ichneumons) ICHNEUMONIDAE 15. Hind coxae contiguous or nearly so; female wingless .....(velvet ants) MUTILLIDAE
Hind coxae broadly separated........(scoliid wasps) SCOLIIDAE 17. Wings folded longitudinally when flexed ..........(vespid wasps) VESPIDAE
Wings not folded longitudinally when flexed............ (tiphiid wasps) TIPHIDAE