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Genus Rivellia

Signal Fly - Rivellia Rivellia Signal Flies - Rivellia - male - female Odd Fly - Rivellia Fly - Rivellia Fly - Rivellia - male - female Small Fly - Rivellia   - Rivellia
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Acalyptratae")
Superfamily Tephritoidea
Family Platystomatidae (Signal Flies)
Genus Rivellia
Explanation of Names
Rivellia Robineau-Desvoidy 1830
34 spp. in our area(1)(2)
Wave wings. Often difficult to identify from photographs. To increase the chance of ID, we need a clear, crisp view of the dorsal thorax (to see whether certain setae are present or absent), wing, and legs (to see the color pattern).
Worldwide, incl. most of the Americas(1), e. NA to s. CA (BG data)
Found on foliage, feces
mostly: May-Aug (BG data)
Adults seen feeding on feces in Durham, NC (P. Coin, pers. obs.)
Life Cycle
R. quadrifasciata lays eggs on leguminous plants; larvae bore into root nodules.
Print References
Namba, Ryoji (1956). A revision of the flies of the genus Rivellia (Otiidae, Diptera) of America north of Mexico. Proc. U. S. Natl. Mus. 106: 21-84. (PDF, or read online at BHL)
Internet References
Works Cited
1.Manual of Nearctic Diptera Volume 2
Varies for each chapter; edited by J.F. McAlpine, B.V. Petersen, G.E. Shewell, H.J. Teskey, J.R. Vockeroth, D.M. Wood. 1987. Research Branch Agriculture Canada.
2.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.