Evanioidea

thumb|250px|right|An Australian species in flight The Gasteruptiidae are one of the more distinctive families among the apocritan wasps, with surprisingly little variation in appearance for a group that contains around 500 species in two subfamilies (Gasteruptiinae and Hyptiogastrinae) and with six genera worldwide. They are members of Evanioidea.

Evaniidae is a family of parasitoid wasps also known as ensign wasps, nightshade wasps, hatchet wasps, or cockroach egg parasitoid wasps. They number around 20 extant genera containing over 400 described species, and are found all over the world except in the polar regions. The larvae of these solitary wasps are parasitoids that feed on cockroaches and develop inside the egg-cases, or oothecae, of their hosts.

species of insect

thumb|Gasteruption assectator thumb|Gasteruption assectator

The Aulacidae are a small, cosmopolitan family of wasps, with two extant genera containing some 200 known species. They are primarily endoparasitoids of wood wasps (Xiphydriidae) and xylophagous beetles (Cerambycidae and Buprestidae). They are closely related to the family Gasteruptiidae, sharing the feature of having the first and second metasomal tergites fused, and having the head on a long pronotal "neck", though they are not nearly as slender and elongate as gasteruptiids, nor are their hind legs club-like, and they have more sculptured thoraces. They share the evanioid trait of having th

The Evanioidea are a small hymenopteran superfamily that includes three extant families, two of which (Aulacidae and Gasteruptiidae) are much more closely related to one another than they are to the remaining family, Evaniidae. The rich fossil record, however, helps fill in the gaps between these lineages. They all share the trait of having the metasoma attached very high above the hind coxae on the propodeum.

species of insect

Evania is a genus of ensign wasps in the family Evaniidae. Like all members of the family, they are cockroach egg parasitoids. There are more than 60 described species in Evania. Evania appendigaster, the blue-eyed ensign wasp, is a common wasp found through most of the world.

species of insect

Aulacus is a genus of aulacids, ensigns, and gasteruptiids in the family Aulacidae. There are 77 species of Aulacus.

Brachygaster is a genus of insects belonging to the family Evaniidae. It was first described by William Elford Leach in 1815.

Cretevania is an extinct genus of Evaniidae, which lived in what is now China, Burma, England, Lebanon, Mongolia, Russia and Spain during the Cretaceous period. the genus was described by Rasnitsyn in 1975, and the type species is Cretevania minor.

Evaniella is a genus of ensign wasps in the family Evaniidae. There are more than 70 described species in Evaniella.

Pristaulacus is a cosmopolitan genus of aulacid wasps in the Hymenopteran family, Aulacidae. There are more than 190 described species in Pristaulacus. Most host records for Pristaulacus are wood-boring beetles (Cerambycidae and Buprestidae). thumb|Pristaulacus fasciatus

Hyptia is a genus of ensign wasps in the family Evaniidae. There are at least 50 described species in Hyptia. Most Hyptia can be differentiated from other genera by heavily reduced venation of the forewings, wherein only one closed cell is present.

species of insect

Pseudofoenus is a genus in the family Gasteruptiidae. There are some 76 described species in Pseudofoenus which has a restricted Gondwanan distribution and is found in Australia, New Guinea and New Britain, the south-west Pacific (New Caledonia, New Hebrides and Fiji), New Zealand and South America. thumb|Pseudofoenus, New Zealand

species of insect