Blackburneus Schmidt, 1913

Dellacasa, Marco, Dellacasa, Giovanni & Gordon, Robert D., 2011, Systematic revision of the American taxa belonging to the genera Alloblackburneus Bordat, 2009, and Blackburneus Schmidt, 1913, with description of seven new species (Coleoptera: Scarabaeidae: Aphodiinae), Insecta Mundi 2011 (204), pp. 1-52 : 15-16

Genus Blackburneus Schmidt, 1913 sensulato

Aphodius (Blackburneus) Schmidt, 1913: 137 ; Schmidt 1922: 143; Balthasar 1964: 178; Dellacasa 1988: 99.

Blackburneus ; Paulian 1942: 75; Dellacasa et al. 2001: 102; Dellacasa et al. 2002: 195; Gordonand Skelley 2007: 348.

Type species. Aphodius furcatus Schmidt, 1909 , subsequent designation by Paulian (1942: 75).

Diagnosis. Small size species (length 2.5-5.0 mm), shortly oval, convex, shiny, glabrous rarely with pubescent elytra. Usually pale testaceous, sometimes more or less dark piceous. Head with epistome punctured; clypeus sinuate at middle, round at sides, thinly bordered, edge quite glabrous; genae faintly bristled, not protruding from the eyes; latter rather large; frontal suture distinctly grooved, not tuberculate. Pronotum doubly punctured; lateral margins and hind angles thinly bordered; base not bordered. Scutellum small, triangularly elongate. Elytra without humeral denticle or with epipleural carina more or less distinctly raised at shoulder; striae punctured, the first one broadened apically; interstriae flat or moderately convex. Fore tibiae distallytridentate and proximallyfeebly serrulate on outer margin, upper side sparsely and irregularly punctured. Middle and hind tibiae with strong transverse carinae on outer face, apically fimbriate with spinules elongate and irregularly unequal. All tarsi somewhat longer than respective tibiae. Abdominal sternites punctured and pubescent. Pygidium with some elongate apical setae sparse and straight. Sexual dimorphism nearly faint: in males, the punctation of pronotum disc is somewhat sparser and the inferior apical spur of mesotibiae somewhat shorter and stouter. Aedeagus with short and apically abruptly curved parameres. Epipharynx transverse with anterior margin distinctly sinuate at middle; epitorma triangular; corypha with two strong apical spiculae; tormae short; pediawithrather stoutandsparse setae, stronger ones immixed, above all, laterally frontward; chaetopariae rather stout.

Distribution. Nearctic and Neotropical region.