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Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

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Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

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Family Streblidae - Bat Flies

Trichobius sphaeronotus (Diptera: Streblidae) Trichobius sphaeronotus (Diptera: Streblidae) Trichobius sphaeronotus? Trichobius sphaeronotus? Trichobius sphaeronotus? Trichobius Trichobius Trichobius
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Calyptratae)
Superfamily Hippoboscoidea
Family Streblidae (Bat Flies)
Other Common Names
Streblid Bat Flies
Synonyms and other taxonomic changes
often treated as a subfamily of Hippoboscidae
Explanation of Names
Streblidae Kolenati 1863
5 or 8 spp. in 3-4 genera in our area, depending on source(1)(2), ~240 spp. in 33 genera of 5 subfamilies total(3)(4)
Our fauna(2)
Nycterophilia 2 spp., sw. US
Paratrichobius 1 sp., Arizona
Trichobius 5 spp., widespread
Strebla -- Neotropical genus listed in(2) as potential strays into our region
2-3 mm(1); globally, most spp. 1.5-2.5 mm (some neotropical spp. 0.75-5.0 mm)(4)
worldwide; 3 subfamilies restricted to the New World, 2 to the Old World(3)
Ectoparasitic on bats (one Old World genus actually has females that imbed themselves and become endoparasites)(2)
Bat blood; the New World streblids tend to be host-specific and adapted to particular areas of host body (wing membrane, head, trunk...); most host species have at least 2 associated streblid spp.(4)
Life Cycle
larviparous; larva usually deposited on the host(4)
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
2.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.
3.Checklist of World Streblidae (Diptera: Hippoboscoidea)
Dick C.W., Graciolli G. 2013.
4.Medical and Veterinary Entomology
Gary Mullen, Lance Durden. 2002. Academic Press.