Geomyphilus russeus ( Brown, 1928 )

Geomyphilus russeus ( Brown, 1928)

( Fig. 41–45 View Figures 41–50 )

Aphodius ( Platyderides) russeus Brown, 1928: 14 ; Dellacasa 1988: 252.

Aphodius russeus ; Ratcliffe 1991: 56.

Geomyphilus russeus ; Gordon and Skelley 2007: 408.

Type locality. Payne Co., Oklahoma [ U.S.A.].

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

Redescription. Length 6.0– 7.5 mm; oblong, moderately convex. shiny, glabrous. Pale reddish brown, head and pronotum slightly darker. Head with epistome gibbous on disc, finely punctured, rather coarsely closely, evenly punctured distally; clypeus broadly sinuate at middle, round at sides, very thinly bordered, edge upturned, glabrous; genae obtusely angulate, sparsely rather shortly ciliate, strongly protruding from the eyes; frontal suture finely impressed, faintly trigibbous; front coarsely densely evenly punctured throughout. Pronotum transverse, moderately convex, narrowly explanate toward anterior angles, dually punctured and with a posteromedian longitudinal areola impunctate; large punctures, three to four times larger than small, irregularly scattered, sparser on disc, denser on sides but absent on anteromedian discal area; small punctures rather irregularly sparse throughout but evenly dense at middle of anterior third; lateral margins almost straight, rather thinly bordered, edge glabrous; hind angles obtuse; base evenly arcuate, very thinly bordered. Scutellum flat, distinctly punctured basally. Elytra oval elongate, feebly broadened posteriorly, alutaceous on preapical declivity, finely striate; striae closely not deeply punctured, faintly crenulate; interstriae flat, finely, barely perceptibly punctate. Hind tibiae upper spur as long as first tarsal segment; latter almost as long as following three segments combined. Male: fore tibiae spur thickened and abruptly bent downward toward apex; inferior spur of middle tibiae very short, apically truncate; aedeagus Fig. 44–45 View Figures 41–50 . Female: fore tibiae spur slender and feebly bent downward; inferior spur of middle tibiae moderately elongate but slender and acuminate.

Material examined. U.S.A.: New Mexico: Raven Flats, Bernalillo Co., 7627 ft, UTM 13S 37.98306E 38.74097N, 08.XI.2010, leg. J. M. Rowland, under dead gopher in tunnel (2 exx., DCGI).

Distribution. U.S.A. ( Arizona, Illinois, Iowa, Kansas, Nebraska, New Mexico, North Dakota, Oklahoma, South Dakota).

Biology. July to October widespread species rodent burrows associate. Sometimes it has been collected in burrows of Geomys bursarius .