Halictid-bees
Guides
Thecophora
A genus of medium-sized conopid flies (4–7 mm) in the family Conopidae, characterized by black coloration with variable abdominal dusting and distinctive leg markings. Adults are active flower visitors from May to October. Larvae are internal parasitoids of halictid bees, with females depositing single eggs into flying hosts. The genus includes three species in Britain, with *Thecophora atra* being the most widely distributed and the subject of a complete genome sequencing effort.