Alloblackburneus rubeolus Dellacasa & Dellacasa & Gordon 2011, new combination
Creators: name: Dellacasa, Marco
name: Dellacasa, Giovanni
name: Gordon, Robert D.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Aphodiidae
Alloblackburneus
Alloblackburneus rubeolus

description: Alloblackburneus rubeolus (Palisot de Beauvois, 1809) new combination   
(Fig. 46-50)  
 Scarabaeus rubeolus Palisot de Beauvois, 1809: 90. Aphodius rubeolus; Horn 1870: 126; Horn 1887: 34; Brown 1927: 164; Woodruff 1973: 91; Gordon 1983:   
 637, 645; Ratcliffe 1991: 53; Harpootlian 2001: 32; Ratcliffe and Paulsen 2008: 199. Aphodius (Koshantschikovius) rubeolus; Schmidt 1913: 149; Schmidt 1922: 229; Dellacasa 1988: 190. Aphodius copronymus Melsheimer, 1844: 136; Horn 1870: 126; Dellacasa 1988: 115 (as synonym of A.   
 rubeolus); Gordonand Skelley 2007: 361 (lectotype designation). Blackburneus rubeolus; Gordon and Skelley 2007: 360; Skelley et al. 2007: 2.   
 Typelocality. Clemson College, South Carolina [U.S.A.].   
 Type repository. Muséum National d’Histoire naturelle. Paris.   
 Redescription. Length 3.5-5.0 mm, moderately elongate, convex, shiny, nearly glabrous, only elytra laterally, and before apex, pubescent. Rufo-ferruginous or pale chestnut brown; legs somewhat paler; antennal club rufo-testaceous. Head with epistome moderately convex on disc, narrowly flattened distally, finely, rather sparsely, subregularly punctured; clypeus feebly sinuate at middle, obtusely round at sides, finely bordered, edge slightly upturned, glabrous; genae widely round, sparsely ciliate, faintly protruding from the eyes; frontal suture distinctly impressed; front somewhat more sparsely punctured. Pronotum moderately transverse, strongly convex, dually punctured, smaller veryfine punctures sparsely subregularly scattered throughout, larger punctures, five to six times larger than small ones, regularly sparse toward sides; latterfeebly arcuate, very thinly bordered, edge sparselyciliate; hind angles obtusely round; base distinctly bisinuate, completely very thinly bordered. Scutellum narrowly elongate, flat, finely punctured on basal third. Elytra faintly broadened posteriorly, lateral margins sparsely ciliate; striae distinct, moderately impressed, superficially punctured, slightly crenulate; interstriae flat with punctation extremely fine and sparse, shiny and glabrous except the ninth and the tenth more or less diffusely pubescent preapically. Hind tibiae stout; superior apical spur short, spatulate and, in lateral view, with a broad concave surface on apical half; first segment of hind tarsi shorter than superior apical spur of tibia as well as following three segments combined. Male: fore tibiae apical spur abruptly outwardly curved; metasternal plate almost flat, with fine longitudinal groove, rather superficially sparsely punctured; aedeagus Fig. 49-50. Female: fore tibiae apicalspur moderately curved outwardly; metasternal plate with faint longitudinal groove, almost imperceptibly punctured.   
 Material examined. MEXICO, San Luis Potosí: 1.8 mi. n. El Naranjo, 1000’, 4-13.X.1965, leg. G. E. Ball & D. R. Whitehead (1 ex., DCGI); Tamaulipas: Tampico 29.XII, leg. E. A. Schwarz (1 ex., DCGI); USA, Arkansas: Hope, 6.IV.1923, leg. L. Knobel (1 ex., DCGI); Florida (9 exx., DCGI); North Carolina: Black Mts., 15.XI.1911 (1 ex., DCGI); South Carolina: Clemson Co., 19.IV.1937, leg. O. L. Cartwright (neotype male, MNHN; 2 exx., DCGI); Jocassee, 5.V.1937, leg. O. L. Cartwright (2 exx., DCGI); Sassafras Mtn., 24.VI.1934, leg. O. L. Cartwright (1 ex., DCGI); Tennessee: West Tennessee (; 4 exx., DCGI); Texas: Mount. Texas (1 ex., DCGI); Mountain Home (6 exx., DCGI).   
 Distribution. Southern Canada; U.S.A. (from Michigan to northern Florida, eastern Texas, eastern Colorado); Mexico (San Luis Potosí, Tamaulipas).   
 Bionomics. Spring, Summer, and Autumn species with bionomy almost unknown. Attracted to light, occasionally collected in dung, probably detritivore.   
 Remarks. According to Evenhuis (1997: 587) most of Palisot de Beauvois’ U.S. collections were lostat sea in 1798. So, that could explain why the type of Scarabaeus rubeolus could not be found in the collections of the Paris Museum and it has to be considered lost. Thus we herein designate as neotype a male from our collection, now in the Muséum nationale d’Histoire naturelle, Paris, bearing the following labels:   
1) white, printed: Clemson College / 19 Apr. 1937 SC / O.L. Cartwright  
 2) red, handwritten: Scarabaeus rubeolus / Palisot de Beauvois, 1805/ neotype / Dellacasa M. & G. des. 2009.
description: Published as part of 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), pp. 1-52 in Insecta Mundi 2011 (204) on pages 11-12, DOI: 10.5281/zenodo.10090539