Chalcid wasps are insects within the superfamily Chalcidoidea, part of the order Hymenoptera. The superfamily contains some 22,500 known species, and an estimated total diversity of more than 500,000 species, meaning the vast majority have yet to be discovered and described. The name "chalcid" is often confused with the name "chalcidid", though the latter refers strictly to one constituent family, the Chalcididae, rather than the superfamily as a whole; accordingly, most recent publications (e.g.,) use the name "chalcidoid" when referring to members of the superfamily.
Hylaeus is a large and diverse cosmopolitan genus within the bee family Colletidae. This genus is also known as the yellow-faced bees or masked bees. This genus is the only truly globally distributed colletid, occurring on all continents except Antarctica.
Eupelmidae is a family of parasitic wasps in the superfamily Chalcidoidea. The larvae of the majority are primary parasitoids, commonly on beetle larvae, though many other hosts are attacked, including spiders. Details of the life history varies considerably. They are found throughout the world in virtually all habitats.
Cecidosidae is a family of primitive monotrysian moths in the order Lepidoptera which have a piercing ovipositor used for laying eggs in plant tissue in which they induce galls, or they mine in bark. Nine species occur in southern Africa, five species in South America and Xanadoses nielseni was recently described from New Zealand. Some minute parasitoid wasps are known.
Microgastrinae is a subfamily of braconid wasps, encompassing almost 3,000 described species, with an estimated 30,000–50,000 total species. This makes it one of the richest subfamilies with the most species of parasitoid wasps.
Hylaeus anthracinus is a species of bee, also known by the common name anthricinan yellow-faced bee. It is endemic to Hawaii and known from only 16 populations. In September 2016, along with six other Hawaiian Hylaeus species, H. anthracinus was listed for protection under the United States Endangered Species Act. This marked a first listing for any bee species in the US.
Brasema is a genus in the family Eupelmidae.
Ooencyrtus is a genus of chalcid wasp. William Harris Ashmead named and circumscribed the genus in 1900.
Psyllaephagus is a genus of chalcid wasps. It was named and circumscribed by William Harris Ashmead in 1900. As of 2019, Psyllaephagus contains approximately 245 species. They are found worldwide: Australia has 100 described species; the Palaearctic region has about 57 species, India has about 20, and Africa about 30.
Rileya is a genus of parasitoid hymenopteran named and described in 1888. It belongs to the Eurytomidae. There are 27 species currently assigned to the genus.
Diolcogaster is a genus of parasitoid wasps within the subfamily Microgastrinae of the family Braconidae. The genus is poorly studied, likely with multiple undescribed species. The type species is Diolcogaster melligaster(Provancher, 1886), formerly Microgaster melligaster. Species in this genus parasitize lepidopterans and are geographically widespread. There are more than 140 described species in Diolcogaster found throughout the world.
Oethecoctonus is a genus of parasitoid wasps in the family Platygastridae. There are about six described species in Oethecoctonus.
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.
Balcha is a genus of chalcid wasps in the family Eupelmidae. There are about 16 described species in Balcha. They are parasitoids of xylophagous (wood-boring) beetles.
Idris is a genus of parasitic wasps in the family Platygastridae, containing about 160 described species. This genus is part of the tribe Baeini, which are egg parasitoids. Members of the genus Idris are mostly parasitoids of spider eggs, but at least one member of the genus uses stink bugs as hosts.
Aphidius is a genus of insects of the family Braconidae.
Chlorocytus is a genus of wasps belonging to the family Pteromalidae.
Hormius is a genus of parasitoid wasp in the subfamily Hormiinae first described by Christian Gottfried Daniel Nees von Esenbeck in 1818.
Anastatus disparis is a species of wasp, and an egg parasitoid. Hosts include Lymantria dispar and Antheraea pernyi. The species is sexually dimorphic, with 630 sex specific genes. Females have 11 antennal subsegments, whereas males have 8. Females only mate once, and males are significantly shorter lived than females, engaging in agonistic behavior.
