Xenelmis Hinton 1936

Manzo, Verónica, 2006, A review of the American species of Xenelmis Hinton (Coleoptera: Elmidae), with a new species from Argentina, Zootaxa 1242, pp. 53-68 : 55

Genus Xenelmis Hinton 1936

Xenelmis Hinton, 1936: 427 ; Hinton, 1940: 295; Hinton, 1946: 237; Delève, 1968: 233; Brown, 1970: 61; Delève, 1970; Brown, 1971: 95; Perkins & Steiner, 1981: 306; Brown, 1985: 53.

Type species: Xenelmis bufo (= Elmis bufo Sharp 1882 )

The genus was erected by Hinton (1936). In this paper he gave an incomplete diagnosis of the genus. The same author ( Hinton 1940), redescribed Xenelmis , added new specific characters to his generic diagnosis, and provided a list of secondary sexual characters that he observed in the known species of the genus. According to Hinton’s descriptions, and the specimens examined in this study, Xenelmis is distinguished from the other genera of Elmidae by the following combination of characters: 1) dorsal surface of head with granules; 2) genae without tomentum; 3) pronotum tomentose; 4) prosternal process almost as wide as long; 5) all abdominal sternae with granules; 6) aedeagus with parameres shorter than penis.