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Family Therevidae - Stiletto Flies

stiletto, male - Ozodiceromyia nigrimana - male Threvid ? - Acrosathe pacifica Ozodiceromyia Unknown Fly - Thereva Unknown Fly - Thereva Fly Stiletto Fly larva Fly larva
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Orthorrhapha)
Superfamily Asiloidea
Family Therevidae (Stiletto Flies)
Explanation of Names
Therevidae Newman 1834
see Thereva
Common name refers to narrow, tapering abdomen
Numbers
~150 spp. in 30 genera in our area(1), >1,600 spp. in >120 genera of 4 subfamilies worldwide(2)
catalog in(3)
Size
2.5-15 mm(1)
Identification
Usually gray flies with moderately tapering abdomen. Five posterior cells with the fourth sometimes closed. Antennomere 3 somewhat elongated.(4)
Larvae:
Range
cosmopolitan, most diverse in Australia(6)
Habitat
usually open areas: adults on foliage, flowers, dry ground along sandy areas; larvae in sand or decaying wood(1)
Food
Adults are nectar feeders; larvae prey on soil arthropods(2)
See Also
similar to robber flies (Asilidae) but without the beard, have more slender legs and no depression between the eyes(1)
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
2.Stiletto Flies of the World
3.An annotated catalogue of the New World Therevidae (Zootaxa 3600 (1): 001 – 105 )
DONALD W. WEBB, STEPHEN D. GAIMARI, MARTIN HAUSER, KEVIN C. HOLSTON, MARK A. METZ, MICHAEL E. IRWIN, GAIL E. KAMPMEIER & KRISTIN. 2013. Magnolia Press.
4.A Field Guide to Insects
Richard E. White, Donald J. Borror, Roger Tory Peterson. 1998. Houghton Mifflin Co.
5.Therevidae home page
6.Australian Faunal Directory