Diadocidia ferruginosa is a PalearcticFauna Europaea species of fungus gnat in the family Mycetophilidae. They live as larvae in long dry silken tubes under bark or in rotten wood (Edwards 1925) and probably feed on fungal mycelia (Zaitzev 1994) or spores (Matile 1997).Jakovlev, J. 2011: Fungus gnats (Diptera: Sciaroidea) associated with dead wood and wood growing fungi: new rearing data from Finland and Russian Karelia andgeneral analysis of known larval microhabitats in Europe. Entomol. Fennica 22: 157–189. pdf Also associated with Peniophora.A. M. Hutson, D. M. Ackland and L. N. Kidd (1980) Diptera - Nematocera. Mycetophilidae (Bolitophilinae, Ditomyiinae, Diadocidiinae, Keroplatinae, Sciophilinae and Manotinae).Handbooks for the Identification of British Insects Vol 9 Part 3. Royal Entomological Society. http://www.royensoc.co.uk/sites/default/files/Vol09_Part03.pdf
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External links Images representing Diadocidia ferruginosa at BOLD