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Omegasyrphus
There are five myrmecophilous species in this genus. These are small Microdontinae flies with a distinctive abdominal shape; the second segment is widened, flattened, and flared, with its lateral margin subcircular, thickened, and rounded, and the rest of abdomen (third–fifth segments) narrowed and cylindrical. Larvae are found in ant nests. They are native to southern North America. The genus was previously treated as a subgenus of Microdon.
| Genus and species | Author and Year | Ant Host | Distribution | Notes |
|---|---|---|---|---|
| Omegasyrphus baliopterus | (Loew, 1872) | ants | Mexico. United States: California, Texas, Illinois | |
| Omegasyrphus coarctatus | (Loew, 1864) | ants | Florida | |
| Omegasyrphus gracilis | (Bigot, 1883) | ants | North America | |
| Omegasyrphus painteri | (Hull, 1922) | ants | Arkansas | |
| Omegasyrphus pallipennis | (Curran, 1925) | ants | New Mexico |
REFERENCES
- Bigot, J.M.F. 1884. Diptères nouveaux ou peu connus. 22e partie, XXXII: Syrphidi (2e partie). espèces nouvelles, No 1er. Annales de la Société Entomologique de France (6) 3: 315-356.
- Hull, F.M. 1922. New Syrphidae (Diptera) from Mississippi. Annals of the Entomological Society of America 15: 370-373
- Loew, H. 1872. Diptera Americae septentrionalis indigena. Centuria decima. Berliner Entomologische Zeitschrift 16: 49-124.
- Reemer, M. & G. Stahls 2013. Phylogenetic relationships of Microdontinae (Diptera: Syrphidae) based on molecular and morphological characters. Systematic Entomology 38 (4): 661-688.