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For Insects, Spiders & Their Kin
For the United States & Canada
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Family Fanniidae

Fly - Fannia - female Diptera Fannia pusio (Wiedemann) - Fannia pusio Fly on leaf in meadow Female, Muscoidea Female, Muscoidea Fly - Fannidae - female diptera
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Calyptratae)
Superfamily Muscoidea
Family Fanniidae
Synonyms and other taxonomic changes
used to be treated as part of Muscidae(1); however, this monophyletic group is sister to the rest of the muscoids plus the Oestroidea(2)
Explanation of Names
Fanniidae Schnabl & Dziedzicki 1911
4 genera, with >110 spp. in our area (all but 10 spp. are in Fannia)(1) and ~360 spp. worldwide(3)
medium-sized to small
body and legs mainly dark; larvae flattened, with striking lateral protuberances
Mostly Holarctic and temperate Neotropical
Larvae live as scavengers in various kinds of decaying organic matter.
Males congregate in characteristic dancing swarms beneath trees; females are more retiring in habit.
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
2.Molecular phylogeny of the Calyptratae (Diptera: Cyclorrhapha)...
S.N. Kutty, T. Pape, B.M. Wiegmann, R. Meier. 2010. Systematic Entomology 35: 614–635.
3.Order Diptera Linnaeus, 1758. In: Zhang Z.-Q. (ed.) Animal biodiversity: An outline of higher-level classification...
Pape T., Blagoderov V., Mostovski M.B. 2011. Zootaxa 3148: 222–229.