Eupsilobiidae is a family of beetles in the superfamily Coccinelloidea, formerly included within the family Endomychidae or Erotylidae.Deelder, C.L. (1942): Revision of the Erotylidae (Coleoptera) of the Leiden Museum. Zool. Meded. 24(3): 49-115. Fulltext
Most genera are restricted to the Neotropics, while the genus Eidoreus is found worldwide. They are fungivores, and have been observed living commensally in bee and ant nests.Tomaszewska, Wioletta. "10.32. Endomychidae Leach, 1815". Volume 2 Morphology and Systematics (Elateroidea, Bostrichiformia, Cucujiformia partim), edited by Willy Kükenthal, Richard A.B. Leschen, Rolf G. Beutel and John F. Lawrence, Berlin, New York: De Gruyter, 2011, pp. 442-454.
Genera The following seven genera, altogether comprising 16 species, are currently included in Eupsilobiidae: Cerasommatidia Brèthes, 1925 Chileolobius Pakaluk & Ślipiński, 1990 Eidoreus Sharp, 1885 Evolocera Sharp, 1902 Ibicarella Pakaluk & Ślipiński, 1990 Microxenus Wollaston, 1861 – South Africa Natalinus Tomaszewska, 2011 – South Africa
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