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.
Megarhyssa, also known as giant ichneumonid wasps, giant ichneumons, or stump stabbers, is a genus of large ichneumon wasps, with some species known for having the longest ovipositors of any insects. They are idiobiont endoparasitoids of the larvae of wood-boring horntail wasps. The ovipositor can be mistaken for a large stinger. This is a genus of holometabolous insects within subfamily Rhyssinae that includes 37 species and belongs to Ichneumonidae, the family of wasps with the highest biodiversity in the world.
Pimplinae are a worldwide subfamily of the parasitic wasp family Ichneumonidae.
Acaenitinae is a subfamily of the parasitoid wasp family Ichneumonidae. Female Acaenitinae have a large triangular projecting genital plate.
Scambus is a genus of wasps. Species are found in Europe, the Middle East (Turkey), South America (Peru)
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.
Rhyssinae is a subfamily of parasitoid wasps in the family Ichneumonidae. It contains eight genera and 259 described species, but there are likely many undiscovered species.
Triclistus pallipes is a species of ichneumon wasp in the family Ichneumonidae. It is a parasitoid of Epermenia chaerophyllella larvae and Swammerdamia pyrella cocoons
Acrotaphus is a genus of ichneumon wasps in the family Ichneumonidae. There are about 26 described species in Acrotaphus. They are parasitoids of Araneidae and Tetragnathidae spider families.
Dolichomitus is a genus of ichneumon wasps in the family Ichneumonidae. There are at least 70 described species in Dolichomitus. The name is derived from the Greek dolicho, meaning long or narrow, and the Greek mitus, meaning a thread.
Lathrolestes is a genus of parasitoid wasps in the family Ichneumonidae and the tribe Perilissini.
Acrodactyla quadrisculpta is a species of parasitoid wasp belonging to the family Ichneumonidae.
Aptesis is a genus of parasitoid wasps belonging to the family Ichneumonidae. The genus was first described by Arnold Förster in 1850 and has almost cosmopolitan distribution.
Campoletis is a 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.
Venturia is a genus of parasitoid wasps belonging to the family Ichneumonidae.
Eriborus is a genus of parasitoid wasps belonging to the family Ichneumonidae.
Hymenoepimecis is a genus of parasitoid wasps belonging to the family Ichneumonidae best known for parasitizing arachnids, specifically those of the families Araneidae and Tetragnathidae.
Heterischnus is a genus of parasitoid wasps belonging to the family Ichneumonidae.
