Alloblackburneus saylori (Hinton, 1934), 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 : 13

Alloblackburneus saylori (Hinton, 1934) new combination

( Fig. 51-55 )

Aphodius saylori Hinton, 1934: 192 ; Blackwelder 1944: 213.

Aphodius (Blackburneus) saylori ; Dellacasa 1988: 147.

Blackburneus saylori ; Skelley et al. 2007: 2.

Type locality. Real de Arriba, District of Temescaltepec [Estado de México, Mexico].

Type repository. United States National Museum. Washington (paratype examined).

Redescription. Length 3.0- 4.5 mm; oblong, convex, shiny, glabrous. Piceous; clypeal margin, pronotal sides and elytra brownish-red; legs pale reddish; antennal club testaceous. Head with epistome moderately convex, evenly rather finely sparsely punctured; punctation somewhat coarser distally, sparser on disc; clypeus feebly sinuate at middle, round at sides, rather thinly bordered, edge somewhat upturned, glabrous; genae obtusely round, near imperceptibly ciliate, feebly but distinctly protruding from theeyes; frontal suture finely impressed; front more sparsely punctured than epistome. Pronotum moderately transverse, convex, dually punctured; large punctures, five to six times larger than small ones, irregularly sparse on sides, lacking on disc; small very fine punctures evenly scattered throughout, somewhat finer on disc and lacking on a longitudinal median areola at basal pronotal half; lateral margins feebly arcuate, rather thickly bordered, edge glabrous; hind angles obtusely round; base arcuate, feebly bisinuate, thinly bordered. Scutellum flat, finely sparsely punctured on basal half. Elytra oval elongate, feebly broadened posteriorly, more or less distinctly denticulate at shoulder, finely striate; striae superficially punctured, not crenulate; interstriae flat or nearly flat, extremely finely sparsely punctured. Hind tibiae superior apical spur regularly acuminate, somewhat shorter than first tarsal segment; latter nearly as long as following three segments combined. Male: head somewhat more sparsely and less coarsely punctured; pronotum not narrowed frontwardly; aedeagus Fig. 54-55 . Female: head somewhat more densely coarsely punctured; pronotum somewhat narrowed frontwardly.

Material examined. MEXICO, Colima: El Tapeiztle, Municipio Minatitlán, Sierra de Manantlán , m 2300, 13.VII.1989, leg. L. Zivera (pastizal) (3 exx., DCGI) ; Durango: 7 mi SW Buenos Aires , 8800', 28.VII.1973, leg. A. Newton (4 exx., DCGI) ; 25 mi. W Durango , 23.VI.1964, leg. H. F. Howden (4 exx., CNCI; 1 ex., DCGI) ; 26.5 mi SW Durango , 21.VII.1973, leg. A. Newton (3 exx., DCGI) ; Minillas, Res. Biosf. “La Michilia”, 9-14.VIII.1989, leg. S. Anduaga (pastizal, excremento fresco de vaca) (3 exx., DCGI) ; idem, 23 o 25’29”N- 104 o 09’08”W, m 2300, 30.VI.2004, leg. C. Huerta & S. Anduaga (3 exx., DCGI) ; idem, IX.2003, leg. C. Huerta & S. Anduaga (5 exx., DCGI) ; Molinillos, Municipio Durango , 23 o 38’N- 105 o 03’W, m 2400, 23.VII.2006, leg. S. Anduaga & K. Grajales (bosque pino) (7 exx., DCGI) ; Rancho Paraiso de los Santos, Piedra Herrada , Res. Biosf. “La Michilia”, 23 o 23’23.5”N- 104 o 14’50.1”W, m 2480, 2.VII.2004, leg. C. Huerta & S. Anduaga (bosque pino-encino) (2 exx., DCGI) ; 24 mi. W La Ciudad , 8.VII.1964, leg. H. F. Howden (1 ex., CNCI) ; idem, 19.VII.1964, leg. H. F. Howden (1 ex., CNCI) ; Jalisco: 3 mi. NE Mazamitla , 12.VII.1973, leg. A. Newton (1 ex., DCGI) ; México: Temascaltepec , 4.VI.1979, leg. M. Zunino (1 ex., DCGI) ; Temescaltepec [= Temascaltepec], Real de Arriba , VIII.1933, leg. H. E. Hinton & R. L. Usinger (2 exx., paratypes, USNM; 2 exx., paratypes, DCGI) ; Michoacán: Mazamitla , 24.VII.1953, leg. C. & P. Vaurie, Rockefeller Exp. (1 ex., DCGI) ; rd. Patzcuaro-Uruapan, Planta PEMEX Diablo de Zirahuén , 19 o 29’N- 101 o 48’W, m 2200, 23.VII.2001, leg. M. Dellacasa & I. Martínez (2 exx., DCGI) ; Quintana Roo: Palmeras, Playa Azul , 20.VII.1980, leg. M. Zunino (1 ex., DCGI) ; Sinaloa: 38 mi NE Concordia , 19.VI.1973, leg. A. Newton (2 exx., DCGI) ; 26.5 mi. SW Durango , 21.VII.1973, leg. A. Newton (3 exx., DCGI) .

Distribution. Mexico (Colima, Durango, Jalisco, México, Michoacán, Quintana Roo, Sinaloa).

Bionomics. Late Spring and Summer coprophagous species found in cow dung, sometimes in wooded areas.

Figures

Figures 51-60. Alloblackburneus saylori (Hinton, 1934) (Real de Arriba, Temascaltepec, Estado de México, Mexico). 51) Epipharynx. 52-53) Habitus (length ideogram and morphological details). 54-55) Aedeagus (dorsal and lateral view). Alloblackburneus tenuistriatus (Horn, 1887) (Tyler, Texas, U.S.A.). 56) Epipharynx. 57-58) Habitus (morphological details and length ideogram). 59-60) Aedeagus (dorsal and lateral view).