Alloblackburneus cavidomus (Brown, 1927) Dellacasa & Dellacasa & Gordon, 2011

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 : 6-7

Alloblackburneus cavidomus (Brown, 1927) new combination

( Fig. 11-15 )

Aphodius cavidomus Brown, 1927: 167 .

Aphodius (Blackburneus) cavidomus ; Dellacasa 1988: 333.

Blackburneus cavidomus ; Gordonand Skelley 2007: 355.

Typelocality. Otoe Pasture, Noble Co., Oklahoma [ U.S.A.].

Type repository. Canadian National Collection, Ottawa (type not examined).

Redescription. Length 3.0- 4.5 mm; oblong, convex, shiny, glabrous. Reddish yellow to pale brownish red; elytral suture and sometimes head and pronotum slightly darker; legs brownish red; antennal club testaceous. Head with epistome moderatelyconvex on disc, finely subregularly punctured throughout; punctation somewhat sparser on disc; clypeus sinuate at middle, obtusely round at sides, distinctly bordered, edge somewhat upturned, glabrous; genae round, almost imperceptibly bristled, not protruding from the eyes; frontal suture faintly impressed; front somewhat more finely sparsely punctured than epistome. Pronotum moderately transverse, very convex, dually punctured; large punctures, five to six times larger than small, dense and coarse on sides, lacking on disc; small sparse punctures regularly scattered throughout, very fine, often indistinct, on disc; lateral margins feebly arcuate, thinly bordered, edge glabrous; hind angles obtusely round; base faintly bisinuate, thinly bordered. Scutellum flat, with few very fine punctures. Elytra almost subparallel-sided, with epipleural carina subdentiform at shoul- der, finely striate; striae rather closely punctured, feebly crenulate; intervals nearly flat, finely punctured, subapically microreticulate, alutaceous;. Hind tibiae superior apical spur regularly acuminate, shorter than first tarsal segment; latter as long as following three segments combined. Male: head and pronotum somewhat more superficially and less densely punctured; latter not narrowed frontwardly; aedeagus Fig. 14-15 . Female: head and pronotum somewhat more coarsely and more densely punctured.

Material examined. USA, Oklahoma: Comanche Co., Wichita Mts. Refuge, 5-7.VI.1979, leg. S. & J. Peck (shortgrass prairie, prairie dog burrows) (1 ex., DCGI) ; Texas: Lubbock Co., 3 mi. W New Deal, 12.V.1977, leg. D. E. Foster & D. D. Ralstom (ex burrow of Cynomys ludovicianus ) (1 ex., DCGI) .

Distribution. U.S.A. (Oklahoma, Utah, Texas).

Bionomics. Spring, Summer and early Autumn species known to occur in burrows of the black tailed prairie dog ( Cynomys ludovicianus (Ord)) from May to September.

Figures

Figures 11-20. Alloblackburneus cavidomus (Brown, 1927) (Wichita, Mts. Refuge, Comanche Co., Oklahoma, U.S.A.). 11) Epipharynx. 12-13) Habitus (length ideogram and morphological details). 14-15) Aedeagus (dorsal and lateral view). Alloblackburneus cynomysi (Brown, 1927) (Noble Co., Oklahoma, U.S.A.). 16) Epipharynx. 17- 18) Habitus (morphological details and length ideogram). 19-20) Aedeagus (dorsal and lateral view).