Belongs within: Asilidae. The Asilinae are a group of robber flies with a long, bare stylus on the antenna. They are the most diverse subfamily of robber flies in temperate regions of the world but are less diverse in the tropics. Asilines are unusual among Diptera in the absence of  a crop or esophageal diverticulum… Continue reading Asilinae


Belongs within: Asiloidea.Contains: Anthracinae, Lomatiinae, Toxophorinae, Ecliminae, Bombyliinae, Phthiriinae. The Bombyliidae, bee flies, are a cosmopolitan group of often woolly and usually stoutly built flies, often bearing a long projecting proboscis. Adults are nectar and pollen feeders that may often be observed visiting flowers. Larvae are predators or parasitoids of other arthropods (Greathead et al.… Continue reading Bombyliidae


Belongs within: Tabanidae. The Tabanini are a cosmopolitan group of horse flies, most diverse in the Northern Hemisphere. Ocelli are typically absent though an ocellar tubercle remains visible in Hybomitra (Pechuman & Teskey 1981). The largest genus Tabanus is probably polyphyletic, being largely defined by the absence of characters found in other genera (Burger 2009).… Continue reading Tabanini


Belongs within: Stratiomyomorpha.Contains: Stratiomyini, Oxycerini, Sarginae, Clitellariinae, Pachygastrinae. The Stratiomyidae, soldier flies, are an ecologically diverse group of often colourful flies. Larvae of the Stratiomyinae and Nemotelinae are aquatic whereas larvae of other subfamilies are terrestrial, mostly living in association with decaying plant or animal matter. As adults, the Chiromyzinae are markedly sexually dimorphic, with… Continue reading Stratiomyidae


Belongs within: Anthracinae. The Anthracini are a cosmopolitan group of bee flies, characterised by the presence of an apical circlet of hairs around the compacted, often onion-shaped antenna. Recorded hosts are mostly aculeate wasps and bees though at least two species, Anthrax georgicus and A. gideon, attack larvae of Cicindelidae (Greathead et al. 2009). Anthracins… Continue reading Anthracini


Belongs within: Asiloidea. The Mydidae, mydas flies, are a group of predatory flies with a characteristic clubbed second antennal flagellomere. The Neotropical species Mydas heros is one of the world’s largest flies (Colless & McAlpine 1991). The genus Rhaphiomidas, found in southwestern North America, differs from other mydids in several features including the possession of… Continue reading Mydidae


Belongs within: Therevidae. The Therevinae are a widespread group of stiletto flies characterised primarily by features of the genitalia. Members include the diverse North American genus Ozodiceromyia, characterised by areas of reduced pubescence on the frons, thorax and/or abdomen, with the frons usually being shiny black in females and having a small shiny black area… Continue reading Therevinae


Belongs within: Orthorrhapha.Contains: Ogcodes. The Acroceridae, small-headed flies, are a group of flies that develop as endoparasitoids of spiders. As indicated by the vernacular name, the head is small and mostly taken up by the enlarged, often holoptic compound eyes. Members of the subfamily Philopotinae are distinguished from other subfamilies by strongly developed postpronotal lobes,… Continue reading Acroceridae


Belongs within: Stratiomyidae. The Stratiomyini are a group of soldier flies with the antenna lacking an apical stylus, and vein A1 in the wing straight. They may be divided between tribes Stratiomyini sensu stricto and Odontomyiini based on whether the antenna has five (Stratiomyini) or six (Odontomyiini) flagellomeres (James 1981) but this division is not… Continue reading Stratiomyini


Belongs within: Tabanomorpha. The Rhagionidae are a group of slender flies, mostly of poorly known habits. Females of some species are blood-suckers but others are reported to be predaceous on other insects. Larvae, where known, are predators of earthworms and insect larvae (Kerr 2009). The classification of the family has been subject to debate with… Continue reading Rhagionidae