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Genus Diadocidia

Dipteran 30 - Diadocidia ferruginosa fungus gnat - Diadocidia ferruginosa - male Fly - Diadocidia ferruginosa - female
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Nematocera" (Non-Brachycera))
Infraorder Bibionomorpha (Gnats, Gall Midges, and March Flies)
Superfamily Sciaroidea (Fungus Gnats and Gall Midges)
Family Diadocidiidae
Genus Diadocidia
About 20 species worldwide.
Distinguished from other fungus gnats by crossveins R-M and M-Cu in a continuous straight line.
Worldwide except sub-Saharan Africa
"Larvae live in mucous tubes under rotting logs and have been associated with the fungus Peniophora." (Vockeroth, 2009)(1)
Three North American species:
D. ferruginosa is yellow to brown with R1 ending near the fork of M. Holarctic south to South Carolina and California in mountains.
D. stanfordensis is dark brown to black, R1 ends near the fork of M, and is found in California.
D. borealis has longer R1 than the other two species. Southern Canada south to South Carolina and California in mountains.
Print References
Laštovka, P. and L. Matile. 1972. Revision des Diadocidia holarctiques [Dipt. Mycetophilidae]. Ann Soc. ent Fr. 8(1):205-228.
Internet References
Works Cited
1.Manual of Central American Diptera
Brian V. Brown et al. 2009. NRC Research Press.