Evanioidea

It is a poorly known group as a whole, with some 1100 known species in total, and a great many species are still undescribed. While each of the three families differs in biology, within each family, they are remarkably uniform in appearance and habits.

The oldest records of the group date to the Middle Jurassic, and were diverse from the Middle Jurassic to mid Cretaceous, however, during the mid-Cretaceous they were overtaken in diversity by the Ichneumonoidea, and since the end of the Cretaceous have a relatively scant fossil record.

Classification

Early-diverging families

Family †Praeaulacidae Rasnitsyn, 1975

Family †Nevaniidae Zhang & Rasnitsyn, 2007

Family †Othniodellithidae Engel & Huang, 2016

Neoevaniodes Engel, 2006

Family †Anomopterellidae Rasnitsyn, 1975

Aulaciformes Grimaldi & Engel, 2005

Family †Baissidae Rasnitsyn, 1975

Euaulacides Engel, 2006

Family Gasteruptiidae Ashmead, 1900

Subfamily †Hypselogastriinae Engel, 2016

Subfamily †Kotujellitinae Rasnitsyn, 1991

Subfamily Hyptiogastrinae Crosskey, 1953

Subfamily Gasteruptiinae Ashmead, 1900

Family Aulacidae Shuckard, 1841

Subfamily †Hyptiogastritinae Engel, 2006

Tribe †Archeofoenini Engel, 2017

Tribe †Hyptiogastritini Engel, 2006

Subfamily Aulacinae Shuckard, 1841

Tribe †Electrofoenini Cockerell, 1917

Tribe Aulacini Shuckard, 1841

Evaniiformes Grimaldi & Engel, 2005

Family Evaniidae Latreille, 1802