Geomyphilus insolitus ( Brown, 1928 )

Dellacasa, Marco, Dellacasa, Giovanni, Skelley, Paul E. & Gordon, Robert D., 2017, Systematic revision of the species of Geomyphilus (Coleoptera: Scarabaeidae: Aphodiinae) of Mexico and neighboring countries with description of a new Mexican species, Insecta Mundi 2017 (590), pp. 1-19 : 7

Geomyphilus insolitus ( Brown, 1928)

( Fig. 21–25 )

Aphodius (Platyderides) insolitus Brown, 1928: 18 ; Dellacasa 1988: 314.

Geomyphilus insolitus ; Gordon and Skelley 2007: 399.

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

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

Redescription. Length 4.5–6.0 mm; elongate-oblong, moderately convex, shiny, glabrous. Pale reddish brown; head posteriorly and pronotal disc more or less widely brownish; legs and antennal club pale reddish brown. Head with epistome moderately convex on disc, toward clypeal margin sparsely minutely granulate; finely, rather closely and somewhat irregularly punctured postero-medially; clypeus feebly sinuate at middle, obtusely round at sides, lateral margins arcuate, thinly bordered, edge reflexed and glabrous; genae broadly round, ciliate, not protruding from the eyes; front rather finely, irregularly punctured. Pronotum moderately convex, shallowly depressed near posterior angles, dually punctured; large coarse punctures, ten times or more larger than small, irregularly scattered throughout, denser near hind angles, closer on sides, sparser on disc; small, very fine punctures not closely, evenly sparse throughout; anterior angles broadly round; lateral margins rather subparallel toward base and slightly inwardly sinuate before hind angles, thinly bordered, edge glabrous; hind angles obtusely round, base regularly arcuate, finely bordered. Scutellum distinctly punctured on basal half. Elytra slightly broader posteriorly; striae fine, rather closely punctured, subcrenulate; interstriae almost flat, very finely and sparsely punctured. Hind tibiae upper spur somewhat shorter than first tarsal segment; latter as long as following three segments combined. Male: pronotum relatively less convex, more transverse, more sparsely punctured; fore tibiae spur stout; inferior spur of middle tibiae shortened and obliquely truncate apically; aedeagus Fig. 24–25 . Female: pronotum relatively more convex, less transverse, more densely punctured; fore tibiae spur slender; middle tibiae inferior spur acuminate.

Material examined. U.S.A.: Illinois: 4 mi. NW of Hopkins Pk. , Kankakee Co., 29.IV.1948, leg H. F. Dybas & R. F. Inger, ex a fecal chamber of Geomys bursarius illinoensis (1 ex., DCGI) ; Hopkins Park, Kankakee Co., reared from larvae collected ex fecal chamber of Geomys bursarius illinoensis , adults emerged on 25.V.1951 ; leg. H. F. Dybas & R. F. Inger (2 exx., DCGI); Indiana: 3 mi. S. jct. Hwy 10 & Sr. 55, on Sr. 55, Newton Co., 29.IX–08.XII.1991, leg. P. Kovarik, Geomys burrow pitfall (1 ex., DCGI) ; Oklahoma: vcty. Wilburton , Latimer Co., 19-21.XII.1991, leg. K. Stephan & P. Skelley (206 exx., DCGI) .

Figures

Figures 21–30. Illustrations of species. 31–25) Geomyphilus insolitus (Brown, 1928) (3 mi. S jct. Hwy 10 & Sr 55, on Sr 55, Newton Co., Indiana, U.S.A.). 21) Epipharynx. 22–23) Habitus (morphological details and length ideogram).24–25) Aedeagus (dorsal and lateral view). 26–30) Geomyphilus kiowensis (Gordon and Salsbury, 1999) (S of Lodgepole, Cheyenne Co, Nebraska, U.S.A.). 26) Epipharynx. 27–28) Habitus (morphological details and length ideogram). 29–30) Aedeagus (dorsal and lateral view).