Alloblackburneus geomysi (Cartwright, 1939) 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 : 8-9

Alloblackburneus geomysi (Cartwright, 1939) new combination

( Fig. 26-30 )

Aphodius geomysi Cartwright, 1939: 356 ; Woodruff 1973: 83 (as synonym of A. aegrotus ); Dellacasa 1988: 334 (as synonym of A. aegrotus ).

Aphodius aegrotus auctorum nec Horn 1870: 127; Woodruff 1973: 83; Gordon 1983: 645; Skelley and Gordon 2002: 83.

Blackburneus geomysi ; Gordonand Skelley 2007: 357 (bona species).

Typelocality. Newman’s Lake, Alachua Co., Florida [ U.S.A.]. Type repository. United States National Museum. Washington (type not examined).

Redescription. Length 4.0-5.0 mm; broadly stout, convex, shiny, glabrous. Castaneous; elytra paler; legs reddish-brown; antennal club brownish. Head with epistome moderately convex on disc, very finely, almost evenly punctured; clypeusbroadly but feebly sinuate at middle, abruptly angulate at sides, thinly bordered, edgesomewhat upturned laterally, glabrous; genae round, sparsely ciliate, not protruding from the eyes; frontal suture, at least medially, distinctly impressed; front more finely and more sparsely punctured than epistome. Pronotum transverse, convex, slightly narrowed frontwardly, dually punctured; large umbilicate punctures, some of which oblong, seven times larger than small ones, grouped on posterior half of lateral third; very small punctures evenly scattered, becoming extremely minute and almost imperceptible on disc; lateral margins feebly arcuate, rather thickly bordered, edge glabrous; hind angles obtusely round; base faintly bisinuate, thinly bordered. Scutellum flat, somewhat depressed basally and therein with few fine punctures. Elytra suboval, tapered posteriorly; epipleural carina very distinct at shoulder and on elytral base reaching the sixth stria; striae fine, superficially punctured, weakly crenulate; interstriae flat with punctures very minute, nearly imperceptible. Hind tibiae superior apical spur inwardly abruptly curved, spatulate in lateral view, with broad concave face, shorter than first tarsal segment; latter as long as following three segments combined. Tarsal claws slender and very elongate, nearly as long as two-thirds the length of last tarsal segment. Male: fine punctures on pronotal disc almost obsolete; fore tibiae apical spur obtuse at tip; aedeagus Fig. 29-30 . Female: fine punctures of pronotal disc somewhat more distinct; fore tibiae apical spur acuminate at tip.

Material examined. USA, Florida: Alachua Co., 2.5 mi SW Archer , 21-28.VIII.1988, leg. P. Skelley (pitfall trap in Geomys burrow – pig dung + malt) (8 exx., DCGI) ; idem, 18-24.IX.1986, leg. P. Skelley ( Geomys burrow pitfall) (4 exx., DCGI) ; idem, 23-30.X.1988, leg. P. Skelley ( Geomys burrow pitfall trap) (5 exx., DCGI) ; Eau Gallie , 9.VIII.1938, leg. C. C. Goff (from burrow of Geomys floridana ) (1 ex. paratype, DCGI) ; Polk Co., Lake Streaty , 10.VIII.1938, leg. C. C. Goff (from burrow of Geomys floridana ) (1 ex. paratype, DCGI) .

Figures

Figures 21-30. Alloblackburneus fordi (Gordon, 1974) (Little Cumberland I., Camdem Co., Georgia, U.S.A.). 21) Epipharynx. 22-23) Habitus (length ideogram and morphological details). 24-25) Aedeagus (dorsal and lateral view). Alloblackburneus geomysi (Cartwright, 1939) (2.5 mi. SW Archer, Alachua Co., Florida, U.S.A.). 26) Epipharynx. 27-28) Habitus (morphological details and length ideogram). 29-30) Aedeagus (dorsal and lateral view).