Conopid
Guides
Dalmannia nigriceps
Dalmannia nigriceps is a species of thick-headed fly described by Loew in 1866. It belongs to the genus Dalmannia within the family Conopidae, a group of parasitic flies known for their distinctive head morphology. The species has been documented in the northeastern United States, particularly Vermont.
Myopa clausa
Thick-headed Fly
Myopa clausa is a species of thick-headed fly in the family Conopidae, a group of parasitic flies known for their stout build and broad heads. Like other conopids, this species is an internal parasite of bees and wasps. The genus Myopa is seldom recorded, partly due to identification difficulties.
Myopa rubida
Myopa rubida is a species of thick-headed fly in the family Conopidae, first described by Bigot in 1887. Like all conopids, it is an internal parasite of bees and wasps. The genus Myopa is seldom recorded, partly due to identification difficulties. Species in this genus are sometimes known as 'beegrabbers' for their habit of intercepting host insects in flight to oviposit eggs between abdominal segments.
Physocephala burgessi
thick-headed fly
Physocephala burgessi is a species of thick-headed fly in the family Conopidae. Like other members of its genus, it is a parasitoid of bees and wasps. The species exhibits wasp mimicry in appearance and behavior, including an elongated abdomen resembling a wasp waist and dark pigmentation along the front wing margin that mimics the folded wing appearance of potter wasps at rest.
Physocephala furcillata
thick-headed fly
Physocephala furcillata is a species of thick-headed fly in the family Conopidae. Like other members of its genus, it is a parasitoid that attacks bees and wasps in mid-air, forcibly depositing eggs between the host's abdominal segments. The resulting larvae develop internally, typically killing the host within 10–12 days. The species exhibits wasp mimicry, with an elongated abdomen and pigmented wing margins that resemble the folded wings of potter wasps.
Physocephala texana
thick-headed fly
Physocephala texana is a species of thick-headed fly in the family Conopidae. It is an internal parasite of bumble bees, specifically Bombus vosnesenskii. The female fly intercepts bees in mid-air and forcibly deposits an egg between the host's abdominal segments. The larva develops inside the living bee, eventually killing it and pupating within the hollow exoskeleton. Adult flies are wasp mimics with elongated abdomens and heavily pigmented wing margins that resemble the folded wings of potter wasps.
Stylogaster beresfordi
Stylogaster beresfordi is a species of thick-headed fly in the family Conopidae, described in 2014. It belongs to the distinctive subfamily Stylogastrinae, characterized by females possessing an extremely elongated, needle-like abdomen used for oviposition. The genus Stylogaster comprises approximately 92 described species distributed primarily in the Neotropics, sub-Saharan Africa, and Southeast Asia, with only two species known from North America. Members of this genus are obligate internal parasites of crickets, cockroaches, and calyptrate flies.
Stylogaster neglecta
Stylogaster neglecta is a species of conopid fly (family Conopidae) first described by Williston in 1883. It is a parasitoid with a documented host association with the black-horned tree cricket (Oecanthus nigricornis). Larvae emerge from juvenile hosts during late summer after an estimated 30-day incubation period, killing the host in the process. The species has been recorded from southern Ontario, Canada and the northeastern United States.