The families placed here are:
|Imago of Sepedon sphegea (Sciomyzidae)|
The Acalyptratae or Acalyptrata are a subsection of the Schizophora, which are a section of the order Diptera, the "true flies". In various contexts the Acalyptratae also are referred to informally as the acalyptrate muscoids, or acalyptrates, as opposed to the Calyptratae. All forms of the name refer to the lack of calypters in the members of this subsection of flies. An alternative name, Acalypterae is current, though in minority usage. It was first used by Justin Pierre Marie Macquart in 1835 for a section of his tribe Muscides; he used it to refer to all acalyptrates plus scathophagids and phorids, but excluding Conopidae.
The confusing forms of the names stem from their first usage; Acalyptratae and Acalyptrata actually are adjectival forms in New Latin. They were coined in the mid 19th century in contexts such as "Muscae Calyptratae and Acalyptratae" and "Diptera Acalyptrata", and the forms stuck.The Acalyptratae are a large assemblage, exhibiting very diverse habits, with one notable and perhaps surprising exception: no known acalyptrates are obligate blood-feeders (hematophagous), though blood feeding at various stages of the life history is common throughout other Dipteran sections.Coelopidae
The Coelopidae or kelp flies are a family of Acalyptratae flies (order Diptera), they are sometimes also called seaweed flies, though both terms are used for a number of seashore Diptera. Fewer than 40 species occur worldwide. The family is found in temperate areas, with species occurring in the southern Afrotropical, Holarctic, and Australasian (which has the most species) regions.Dryomyza
Dryomyza is a genus of flies from the family Dryomyzidae. There are 11 known species of which 2 are fossils.Eutrichomelina
Eutrichomelina is a genus of flies in the family Sciomyzidae, the marsh flies or snail-killing flies.Hedria
Hedria is a genus of flies in the family Sciomyzidae. There is one described species in Hedria, H. mixta.Helosciomyzidae
The Helosciomyzidae are a small family of flies - 9 genera and 22 species.
All are known from the Southern Hemisphere. With the exception of the South American genus Sciogriphoneura, the family occurs in Australia, New Zealand.
Little is known of their biology.Heterocheila
Heterocheila is a genus of acalyptrate true flies (Diptera). They are placed in their own family, Heterocheilidae, in the superfamily Sciomyzoidea. They are not widely familiar outside entomological circles, but the common name "half-bridge flies" has been associated with them. They are medium-sized flies occurring mainly in temperate regions on seashores of the Northern Hemisphere, where they and their larvae typically feed on stranded kelp in the wrack zone. In this, they resemble kelp flies, which are members of a different family, though the same superfamily.
The family Heterocheilidae was established by McAlpine in 1991. He distinguished it from other families to which Heterocheila had hitherto been referred at various times and by various authorities – Helcomyzidae, Dryomyzidae and Coelopidae.Limnia (fly)
Limnia is a genus of flies in the family Sciomyzidae, the marsh flies or snail-killing flies.Nemopoda
Nemopoda is a genus of flies belonging to the family Sepsidae.Perilimnia
Perilimnia is a genus of flies in the family Sciomyzidae, the marsh flies or snail-killing flies.Psacadina
Psacadina is a genus of flies in the family Sciomyzidae, the marsh flies or snail-killing flies.Ropalomeridae
The Ropalomeridae are a family of acalyptrate flies.Sciomyza
Sciomyza is a genus of flies in the family Sciomyzidae, the marsh flies or snail-killing flies.Sciomyzinae
Sciomyzinae is a subfamily of flies in the family Sciomyzidae.Sciomyzini
Sciomyzini is a tribe of flies in the family Sciomyzidae.Tetanocera
Tetanocera is a genus of marsh flies, insects in the family Sciomyzidae. There are at least 50 described species in Tetanocera.Tetanocerini
Tetanocerini is a tribe of flies in the family Sciomyzidae. There are at least 120 described species in the tribe.Tetanura
Tetanura is a genus of flies in the family Sciomyzidae, the marsh flies or snail-killing flies.Themira
Themira is a genus of flies in the family Sepsidae.
Extant Diptera families