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 play an important role as regulators of insect populations, both in natural and semi-natural systems, making them promising agents for biological control.
Anomaloninae is a subfamily of parasitoid wasps in the family Ichneumonidae. Several species provide beneficial services to humans by attacking forest or orchard pests.
Agrothereutes is a genus of parasitoid wasps belonging to the family Ichneumonidae. There are more than 40 described species in Agrothereutes.
Aclastus is a genus of wasps belonging to the family Ichneumonidae. The genus was described in 1868 by Förster and has cosmopolitan distribution.
Acrolyta is a genus of wasps belonging to the family Ichneumonidae. The genus was described in 1868 by Arnold Förster and has cosmopolitan distribution. It is a parasitoid of Cotesia wasps.
Euaesthetus is a genus of beetles belonging to the family Staphylinidae.
Exetastes is a genus of parasitoid wasps belonging to the family Ichneumonidae.
Gambrus is a genus of wasps belonging to the family Ichneumonidae. The genus was first described by Förster in 1868 and has cosmopolitan distribution.
Itoplectis is a genus of insect belonging to the family Ichneumonidae.
Arotes is a genus of parasitoid wasps belonging to the family Ichneumonidae.
Hyposoter is a large cosmopolitan genus of parasitoid wasps belonging to the family Ichneumonidae.
Enizemum is a genus of parasitoid wasps belonging to the family Ichneumonidae.
Sinophorus is a genus of parasitoid wasps belonging to the family Ichneumonidae.
Eriborus is a genus of parasitoid wasps belonging to the family Ichneumonidae.
Tycherus is a genus of parasitoid wasps belonging to the family Ichneumonidae.
Stilpnus 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.
Megaplectes 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.
Alcima is a genus of parasitoid wasps belonging to the family Ichneumonidae and the subfamily Campopleginae.
