The Ichneumonidae, also known as ichneumon wasps, ichneumonid wasps, ichneumonids, or Darwin wasps, are a family of parasitoid wasps of the insect order Hymenoptera. They are one of the most diverse groups within the Hymenoptera with roughly 25,000 species described as of 2016. However, this likely represents less than a quarter of their true richness as reliable estimates are lacking, along with much of the most basic knowledge about their ecology, distribution, and evolution. It is estimated that there are more species in this family than there are species of birds and mammals combined. Ichneumonid wasps, with very few exceptions, attack the immature stages of holometabolous insects and spiders, eventually killing their hosts. They thus fulfill an important role as regulators of insect populations, both in natural and semi-natural systems, making them promising agents for biological control.
Banchinae is a subfamily of ichneumonid parasitoid wasps containing about 1,500 species; the genera Glypta and Lissonota are very large. The three tribes are all distributed worldwide.
Acaenitinae is a subfamily of the parasitoid wasp family Ichneumonidae. Female Acaenitinae have a large triangular projecting genital plate.
Tersilochinae is a worldwide subfamily of the parasitic wasp family Ichneumonidae.
Allophrys is a genus of the parasitic wasp family Ichneumonidae.
Australochus is a genus of the parasitic wasp family Ichneumonidae. It currently consists of only one species, Australochus clypeator.
Aneuclis is a genus of the parasitic wasp family Ichneumonidae.
Agrothereutes is a genus of parasitoid wasps belonging to the family Ichneumonidae. There are more than 40 described species in Agrothereutes.
Idiogramma comstockii is a species of wasp.
Lusius is a genus of parasitoid wasps in the tribe Phaeogenini Förster, 1869 or Alomyini Förster, 1869, first described by Pierre Jules Tosquinet in 1903, published after his death. The genus is similar in appearance to species in the genus Heterischnus. Lusius occurs in the Oriental, Afrotropical, Neotropical and Australasian biogeographical regions.
Trogus is a genus of parasitoid wasp found in the Holarctic and Neotropic regions. It is placed in the subfamily Ichneumoninae and the tribe Ichneumonini. Trogus species are parasites of larvae and pupae of the swallowtail butterfly family, Papilionidae. The genus consists of twelve extant and one extinct species.
Arotes is a genus of parasitoid wasps belonging to the family Ichneumonidae.
Barycnemis is a genus of parasitoid wasps belonging to the family Ichneumonidae. Host species include the genera Byrrhus, Bledius, and Pissodes.
Campoletis is a genus of parasitoid wasps belonging to the family Ichneumonidae.
Tranosema is a genus of parasitoid wasps belonging to the family Ichneumonidae.
Eriborus is a genus of parasitoid wasps belonging to the family Ichneumonidae.
Syzeuctus is a genus of parasitoid wasps belonging to the family Ichneumonidae.
Rhembobius is a genus of parasitoid wasps belonging to the family Ichneumonidae. They are parasitoids of pupal stage Syrphidae.
Allomacrus is a genus of parasitoid wasps belonging to the family Ichneumonidae.
Callidora is a genus of parasitoid wasps belonging to the family Ichneumonidae and the subfamily Campopleginae. It is relatively species poor, with only five recognized species.
