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Family Nemestrinidae - Tangle-veined Flies

Tangle-veined Fly - Neohirmoneura flavipes Green-eyed fly on Buddleia - Neorhynchocephalus sackenii - female unknown bee fly - Neorhynchocephalus volaticus Neorhynchocephalus volaticus - female Nemestrinid - Neorhynchocephalus sackenii - female Nemestrinidae Neorhynchocephalus volaticus Fly with
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Orthorrhapha)
Family Nemestrinidae (Tangle-veined Flies)
Explanation of Names
Nemestrinidae Griffith & Pidgeon 1832
Numbers
6 spp. in 3 genera in our area(1), 300 spp. in 26 genera total(2)
Size
Our spp. 7-14 mm(1)
Identification
Bee-like appearance and loud buzz. Bristles lacking but body is covered with hair-like setae. Branches of the medial vein join before the apical margin and end toward the front margin of the wing before the apex.
Range
s. & w. US; BC(1); most diverse and common in sw. US
Habitat
Adults frequent flowers
Life Cycle
Most are endoparasitoids of grasshoppers(1), Hirmoneurinae parasitize scarab beetles(3)
Remarks
Rare in NA. Some are considered important in the control of grasshopper populations.
Print References
Bequaert J. (1930) Notes on American Nemestrinidae. Psyche 37:286-298 (Full text)
Bequaert J. (1934) Notes on American Nemestrinidae, second paper. J. New York Ent. Soc. 42: 163-184 (First page)