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) Author Dellacasa, Marco Author Dellacasa, Giovanni Author Gordon, Robert D. text Insecta Mundi 2011 2011-12-16 2011 204 1 52 journal article 10.5281/zenodo.10090539 1942-1354 10090539 Alloblackburneus cynomysi (Brown, 1927) new combination ( Fig. 16-20 ) Aphodius cynomysi Brown, 1927: 166 . Aphodius ( Blackburneus ) cynomysi ; Dellacasa 1988: 333. Blackburneus cynomysi ; Gordonand Skelley 2007: 356. Typelocality . Otoe Pasture, Noble Co., Oklahoma [ U.S.A. ]. Type repository. Canadian National Collection, Ottawa ( paratype examined). Redescription. Length 3.0- 4.5 mm ; stout, convex, moderately shiny, glabrous. Pale brownish red; legs reddish brown with palertarsi; antennal club yellowish. Headwith epistome feebly convex on disc, rather finely evenly punctured, punctation finer on disc; clypeus moderately sinuate at middle, subangulose at sides, thinly bordered, edge feebly reflexed at anterior angles, laterally shortly and sparsely bristled; genae broadly round, almost imperceptibly ciliate, not protruding from the eyes; frontal suture faintly indicate at middle; front evenly, finely punctured. Pronotum transverse, convex, dually, somewhat irregularly punctured; large punctures, twice to three times larger than small ones, denser and moderately coarser on sides, lacking on disc; small punctures, closer and coarser on sides, finer, very sparse and almost imperceptible ondisc; lateral margins feebly arcuate, finely bordered, edge glabrous; hind angles obtusely round; base very finely bordered, edge more or less widely interrupted medially. Scutellum irregularly, moderately punctured on basal half. Elytra convex, moderately tapered toward apex; striae moderately deep, rathercloselyfinely punctured, faintly crenulate; interstriaealmost flat, finely alutaceous, more strongly so on preapical declivity thus rather dull, very distinctly and rather closely punctured. Hind tibiae superior apical spur longer than first tarsal segment; latter as long as following three segments combined. Male: head and pronotum somewhat moresparsely punctured; elytral interstriae finely alutaceous, thus more shiny; metasternal plate moderately incavate; aedeagus Fig. 19-20 . Female: head and pronotumsomewhat moredensely punctured; elytralinterstriae more strongly alutaceous; metasternal plate almost flat. Material examined. USA , Kansas : Kiowa Co. , 13 mi. S Greensburg , 4.V.1997 , leg. G. Salsbury (prairie dog burrow) (2 exx., DCGI ) ; Oklahoma : Noble Co. , Otoe Pasture , 29.VI.1923 , leg. W. J. Brown (from Cynomys hole) ( 1 male , paratype , DCGI ) . Distribution. U.S.A. ( Kansas , Oklahoma , Texas ). Bionomics. Spring species known only from burrows of the black-tailed prairie dog ( Cynomys ludovicianus ).