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Rhopalosyrphus
This is a myrmecophilous genus of Syrphidae with nine species. Rhopalosyrphus Giglio-Tos is a small group of microdontine flower flies restricted to the New World subtropics and tropics, ranging from southern United States to northern Argentina. These flies are rarely collected, only some two dozen specimens are known. The adults mimic eumenine vespids, such as Zethus, which nest in twigs (Bohart & Stange 1965). The immature stages are known for only one species. These were found in ant nests (Pseudomyrmex) in twigs and grass culms, where the larvae probably prey on ant brood.
| Genus and species | Author and Year | Ant Host | Distribution | Notes |
|---|---|---|---|---|
| Rhopalosyrphus abnormis | (Curran, 1925) | ants | Neotropical: Venezuela | sensu lato |
| Rhopalosyrphus abnormoides | Reemer, 2013 | ants | Neotropical | sensu lato |
| Rhopalosyrphus australis | Thompson, 2003 | ants | Paraguay | |
| Rhopalosyrphus cerioides | (Hull, 1943) | ants | Neotropical | sensu lato |
| Rhopalosyrphus ecuadoriensis | Reemer, 2013 | ants | Ecuador | |
| Rhopalosyrphus guentherii | (Lynch Arribálzaga, 1891) | ants | Argentina, Brazil, Costa Rica, Guatemala, Mexico, Paraguay, Peru; United States: Arizona, Alabama, Texas | |
| Rhopalosyrphus oreokawensis | Reemer, 2013 | ants | Neotropical | sensu lato |
| Rhopalosyrphus ramulorum | Weems & Deyrup, 2003 | Pseudomyrmex ejectus, Pseudomyrmex simplex | Mexico; United States: Alabama, Florida | |
| Rhopalosyrphus robustus | Reemer, 2013 | ants | Neotropical |
REFERENCES
- Curran, C.H. 1925. New American Diptera. II. Annals and Magazine of Natural History (9) 16: 338-354.
- Lynch-Arribálzaga, F. 1891-2. Dipterologia Argentina, Syrphidae. An. Soc.Cient. Argent. 32: 80-99
- Weems, H. V., Jr., Thompson, F. C., Rotheray, G. & Deyrup, M. A. 2003. The genus Rhopalosyrphus (Diptera: Syrphidae) (Diptera: Syrphidae). Florida Entomologist 86: 186-193.