|Imago of unidentified species, Brseč (Croatia)|
Here, the Huttoninidae, Phaeomyiidae and Tetanoceridae are provisionally included in the Sciomyzidae. Particularly the latter seem to be an unequivocal part of this group and are ranked as tribe of subfamily Sciomyzinae by most modern authors, while the former two are very small lineages that may or may not stand outside the family and are provisionally ranked as subfamilies here. Whether the Salticellinae and the group around Sepedon warrant recognition as additional subfamilies or are better included in the Sciomyzinae proper is likewise not yet entirely clear. Altogether, the main point of contention is the relationship between the "Huttoninidae", "Phaeomyiidae", Sciomyzidae sensu stricto, and the Helosciomyzidae which were also once included in the Sciomyzidae.
Description and ecology 
Marsh flies are generally slender, yellowish or brownish, about 0.5–1 cm (0.25-0.5 in) long. They have fairly prominent eyes, prominent forward-pointing antennae, and bristles on the hind femora (upper hind leg). The wings are often mottled with various light brown markings according to species.
Marsh flies are common along the edges of ponds and rivers, and in marshy areas. The adults drink dew and nectar. The larvae prey on or become parasites of Gastropoda (slugs and snails). Very little is known about the complete life cycle of these flies.
Selected genera 
Some species are also listed here.
Subfamily Huttonininae (tentatively placed here)
Subfamily Phaeomyiinae (tentatively placed here)
Subfamily Salticellinae (sometimes included in Sciomyzinae)
Further reading 
|Wikimedia Commons has media related to: Sciomyzidae|
- Family description and images
- The Marsh Flies of California
- Marsh fly (Tetanocera sp) diagnostic photographs, male and female specimens, in copulo
- Images of Sciomyzidae from Diptera.info
- Images of Sciomyzidae from Bug Guide
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