Dasydactylus is an American genus in the pleasing fungus beetle family (Erotylidae). They belong to the lizard beetle tribe Languriini of subfamily Languriinae; formerly, their subfamily was considered a distinct family, and their tribe up-ranked to subfamily status, whereas some recent authors prefer to merge Languriinae into subfamily Erotylinae.
The roughly 25-30 members of this genus are essentially restricted to Central America, with only one species ranging north into southernmost Texas and a few records from northern Colombia. They are small beetles, about one-quarter to half an inch long (6-10 mm), with an elongated and slender shape, blackish with a metallic sheen, and in some species contrasting red areas.Leschen, Richard A.B. & Węgrzynowicz, Piotr (1998): Generic catalogue and taxonomic status of Languriidae (Cucujoidea). Ann.Zool. 48(3/4): 221-243. PDF fulltext
Species in this genus include: Dasydactylus aeneopiceus Gorham, 1898 Dasydactylus buprestoides Gorham, 1887 Dasydactylus chalceus (Crotch) Dasydactylus cnici Schaeffer, 1904 Dasydactylus glabricollis Gorham Dasydactylus puncticeps Gorham Dasydactylus sellatus (Crotch)
Dasydactylus nitidus and D.ventralis are synonyms of Langurites lineatus, while the nomen nudum "Dasydactylus rubioanea" refers to a specimen of Goniolanguria latipes.Skelley, Paul E. (1998): A Catalogue of the Crotch Collection of Erotylidae (Coleoptera). Ann. Zool. 48(1/2): 1-44. PDF fulltext
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