Ichneumonid
Guides
Stenobarichneumon saundersii
Stenobarichneumon saundersii is a species of ichneumon wasp in the family Ichneumonidae. It was described by Ezra Townsend Cresson in 1877. The genus Stenobarichneumon is a small group within the diverse ichneumonid fauna. Very few observations of this species exist in public databases.
Stenomacrus
Stenomacrus is a genus of parasitoid wasps in the family Ichneumonidae, first described by Förster in 1869. The genus has a cosmopolitan distribution and contains multiple described species. As members of Ichneumonidae, these wasps are presumed to be koinobiont parasitoids, though specific host relationships remain poorly documented.
Stethantyx nearctica
Stethantyx nearctica is a species of Darwin wasp in the family Ichneumonidae, subfamily Tersilochinae. It was described by Townes in 1971. Members of the genus Stethantyx are small parasitoid wasps. The species name 'nearctica' refers to its distribution in the Nearctic region.
Sulcarius
Sulcarius is a genus of ichneumon wasps in the family Ichneumonidae, established by Townes in 1970. The genus contains parasitoid wasps whose biology remains poorly documented. Records indicate presence in Northern Europe. The single iNaturalist observation suggests the genus is rarely encountered or underreported.
Sympherta
Sympherta is a genus of ichneumon wasps in the family Ichneumonidae, established by Förster in 1869. It belongs to the diverse suborder Apocrita, which includes most parasitoid wasps. The genus is poorly documented in public sources, with minimal species-level information available.
Temelucha ferruginea
Temelucha ferruginea is a species of ichneumon wasp in the family Ichneumonidae, first described by Davis in 1898. The genus Temelucha comprises parasitoid wasps that attack lepidopteran hosts. This species is part of a genus characterized by slender bodies and long antennae typical of many ichneumonids. Limited specific information is available for this particular species beyond taxonomic records.
Temelucha sinuata
Temelucha sinuata is a species of parasitoid wasp in the family Ichneumonidae, first described by Cushman in 1926. The species belongs to the genus Temelucha, a group of ichneumonid wasps characterized by their role as parasitoids of various insect hosts. First records from Mississippi and Florida were documented in 2011, extending the known distribution of this species in the southeastern United States.
Therion circumflexum
Therion circumflexum is a relatively large ichneumonid wasp, 14–25 mm in length, with distinctive black, orange, and yellow coloration. It is a widespread Palearctic and Nearctic species that parasitizes moth caterpillars, including geometrids, sphingids, notodontids, and noctuids. Adults are active from mid-June through September. The species was first described by Linnaeus in 1758 and has been subject to recent taxonomic revision in Japan.
Theronia atalantae fulvescens
Theronia atalantae fulvescens is a subspecies of ichneumonid wasp in the genus Theronia. It belongs to the family Ichneumonidae, a diverse group of parasitoid wasps. The subspecies was described by Cresson in 1865. It has been recorded in Belgium and Canada (Calgary), suggesting a transatlantic distribution pattern. As a member of Theronia, it is presumed to be a parasitoid, though specific host associations for this subspecies remain undocumented.
Tranosema
Tranosema is a genus of ichneumonid parasitoid wasps found in Europe and North America. Species in this genus are endoparasitoids of lepidopteran larvae, particularly tortricid moths. The best-studied species, T. rostrale, is a koinobiont parasitoid of the spruce budworm (Choristoneura fumiferana) and transmits a polydnavirus (ichnovirus) to its host during oviposition, which alters host development and physiology.
Trematopygodes
Trematopygodes is a genus of ichneumonid wasps established by Aubert in 1968. The genus belongs to the family Ichneumonidae, one of the largest families of parasitoid wasps. Very little published information exists about this genus, with only one observation documented on iNaturalist and minimal species-level documentation in major biodiversity databases. The genus name suggests a relationship to Trematopygus, a related ichneumonid genus, with the suffix -odes indicating resemblance.
Trichomma
Trichomma is a genus of parasitoid wasps in the family Ichneumonidae, subfamily Anomaloninae. The genus has an almost cosmopolitan distribution, with records spanning the Indian subcontinent, Brazil, Scandinavia, and other regions. Species within this genus are known to parasitize lepidopteran hosts, including pyralid and tortricid moths. The genus was established by Wesmael in 1849 and contains approximately 30 described species.
Triclistus
Triclistus is a genus of ichneumonid wasps comprising at least 90 described species. Members are solitary endoparasitoids of lepidopteran larvae. The genus exhibits competitive interactions with other parasitoid species when hosts are multiply parasitized.
Triclistus emarginalus
Triclistus emarginalus is a species of ichneumon wasp in the family Ichneumonidae. The species was described by Thomas Say in 1829. It is recorded from several localities in central Canada. As a member of the genus Triclistus, it is presumed to be a koinobiont endoparasitoid of Lepidoptera larvae, though direct host records for this species are not documented.
Triclistus podagricus
Triclistus podagricus is a species of ichneumon wasp in the family Ichneumonidae. It belongs to the genus Triclistus, which comprises koinobiont endoparasitoids of sawfly larvae. The species has been documented in Canada and parts of northern Europe including Denmark and Norway.
Trieces integer
Trieces integer is a species of ichneumonid wasp described by Townes & Townes in 1959. The genus Trieces belongs to the family Ichneumonidae, one of the largest families of parasitoid wasps. Very little published biological information exists for this species. The genus name Trieces derives from Greek, with 'tri-' meaning three and 'eces' likely referring to some morphological feature, though the specific meaning of 'integer' (Latin for 'whole' or 'intact') in this context is not documented in available sources.
Trogomorpha
Trogomorpha is a genus of parasitoid wasps in the family Ichneumonidae. Species in this genus are poorly documented in public literature, with most information limited to taxonomic records. They are part of the diverse ichneumonid radiation, one of the largest families of Hymenoptera. The genus was established by William Harris Ashmead in 1900.
Trogomorpha arrogans
Trogomorpha arrogans is a species of ichneumonid wasp in the genus Trogomorpha. The species was described by Cresson in 1874. As a member of Ichneumonidae, it is a parasitoid wasp, though specific host associations for this species remain poorly documented. It has been recorded in North America with 634 observations on iNaturalist, suggesting it is relatively frequently encountered by naturalists.
Trogus fulvipes
Trogus fulvipes is a species of ichneumonid wasp described by Cresson in 1868. The genus Trogus comprises parasitoid wasps that attack lepidopteran larvae, particularly swallowtail butterflies (Papilionidae). Trogus fulvipes has been documented in southern Canada and California, with specimen records from locations including Waterton and Aweme. Like other members of its genus, this species is presumed to be a koinobiont endoparasitoid of butterfly caterpillars, though specific host records for T. fulvipes are not well documented.
Trogus vulpinus
Trogus vulpinus is a species of ichneumon wasp in the family Ichneumonidae, described by Gravenhorst in 1829. It belongs to the genus Trogus, a group of parasitoid wasps known to attack butterfly and moth larvae. The species is documented across multiple continents with observations spanning temperate regions.
Tromatobia rufopectus
Tromatobia rufopectus is an ichneumonid wasp species described by Cresson in 1870. The species has been documented as a parasite of spider egg sacs, specifically recorded emerging from egg sacs of the orb-weaver Argiope aurantia. It is one of multiple parasitoid species associated with overwintering spider egg cases.
Tycherus
Tycherus is a genus of parasitoid wasps in the family Ichneumonidae, first described by Förster in 1869. Species occur in Europe and North America, with records from Scandinavia, Denmark, Norway, Sweden, and eastern North America including Newfoundland and the Great Smoky Mountains. At least one species, Tycherus osculator, has been studied extensively as a biological control agent for tortricid forest pests. A specimen from the Great Smoky Mountains National Park identified via DNA barcoding likely represents an undescribed species.
Tycherus ater
Tycherus ater is a species of parasitoid wasp in the family Ichneumonidae, first described by Cresson in 1877. The genus Tycherus belongs to the subfamily Ichneumoninae within the large and diverse ichneumonid wasp family. Very little published information exists specifically for this species, though it has been documented in biodiversity surveys including DNA barcoding studies of Great Smoky Mountains National Park, where a specimen was identified as likely representing a new species to science—suggesting potential taxonomic complexity or misidentification issues within the genus. The specific epithet 'ater' refers to the black coloration typical of many Tycherus species.
Woldstedtius
Woldstedtius is a genus of parasitoid wasps in the family Ichneumonidae. The genus was established by Carlson in 1979 and contains at least three described species. Species are distributed across Europe, Australia, and the Americas. As members of Ichneumonidae, they are presumed to be parasitoids of other insects, though specific host relationships remain poorly documented.
Xorides
Xorides is a genus of ichneumon wasps (family Ichneumonidae, subfamily Xoridinae) comprising at least 150 described species. Members are ectoparasitoids of wood-boring beetle larvae, particularly in the families Cerambycidae and Buprestidae. Females possess elongated ovipositors adapted for drilling through wood to reach concealed hosts. The genus has a global distribution spanning the Palaearctic, Afrotropical, and Nearctic regions, with substantial diversity in China and Europe.
Xorides albopictus
Xorides albopictus is a species of ichneumon wasp in the family Ichneumonidae, first described by Cresson in 1870. It belongs to the genus Xorides, which comprises parasitoid wasps that attack wood-boring beetles. The specific epithet 'albopictus' (Latin for 'white-painted') likely refers to distinctive pale markings on the body. As with other members of its genus, this species is presumed to be a parasitoid of cerambycid or buprestid beetle larvae, though specific host records for X. albopictus appear limited in published literature.
Xorides stigmapterus
Xorides stigmapterus is a species of ichneumonid wasp in the subfamily Poemeniinae. It was first described by Thomas Say in 1824. Members of this genus are parasitoids of wood-boring beetle larvae. The species has been recorded in Canada, with specific locality data from Alberta.
Xorides stigmapterus floridanus
Xorides stigmapterus floridanus is a subspecies of ichneumon wasp in the family Ichneumonidae, described by Ashmead in 1890. Like other members of the genus Xorides, this wasp is likely an ectoparasitoid of wood-boring beetle larvae. The subspecies epithet "floridanus" suggests a geographic association with Florida, though specific biological details for this subspecies remain poorly documented.
Xorides stigmapterus stigmapterus
Xorides stigmapterus stigmapterus is a subspecies of ichneumonid wasp in the genus Xorides. It belongs to a group of parasitoid wasps that attack wood-boring beetle larvae. The genus Xorides is part of the family Ichneumonidae, one of the largest families of Hymenoptera. Records indicate this subspecies occurs in Canada.
Zaglyptus
Zaglyptus is a genus of ichneumon wasps in the family Ichneumonidae, established by Förster in 1869. The genus contains at least 20 described species. As parasitoid wasps, members of this genus are presumed to develop by feeding on host arthropods, though specific host associations remain poorly documented in published sources.
Zaglyptus pictilis
Zaglyptus pictilis is a species of ichneumon wasp described by Townes in 1960. It belongs to the genus Zaglyptus, a group of parasitoid wasps within the large family Ichneumonidae. The species is known from limited collection records and appears to be rarely encountered in the field. As with other Zaglyptus species, it is presumed to be a parasitoid of lepidopteran larvae, though direct host records for this specific species remain undocumented.
Zaglyptus varipes
Zaglyptus varipes is a species of ichneumon wasp in the family Ichneumonidae, first described by Gravenhorst in 1829. The species is documented from multiple localities in Alberta and Saskatchewan, Canada. Like other members of its genus, it is presumed to be a parasitoid wasp, though specific host associations remain unverified. The species name 'varipes' refers to variable legs, a morphological trait characteristic of this taxon.
Zagryphus
Zagryphus is a genus of ichneumon wasps in the family Ichneumonidae, established by Cushman in 1919. As a member of the Ichneumonoidea superfamily, species in this genus are parasitoid wasps. The genus is part of the diverse and species-rich Ichneumonidae family, one of the largest families of insects. Specific biological details for Zagryphus remain poorly documented in available literature.
Zatypota anomala
Zatypota anomala is a koinobiont ichneumonid wasp in the tribe Ephialtini that parasitizes mesh web weaving spiders in the family Dictynidae. It is strictly specialized on Dictyna and Nigma spiders in Europe, with a distribution concentrated at mid-elevations in central European forest ecotones. The species exhibits elevation-dependent host partitioning, parasitizing Nigma at lower elevations (179–254 m a.s.l.) and Dictyna at higher elevations (361–870 m a.s.l.). First recorded from Italy in 2022, parasitizing Dictyna pusilla.