Blackburneus laxepunctatus
Creators: name: Dellacasa, Marco
name: Dellacasa, Giovanni
name: Gordon, Robert D.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Aphodiidae
Blackburneus
Blackburneus laxepunctatus

description: Blackburneuslaxepunctatus (Schmidt, 1910)   
(Fig. 111-115)  
 Aphodius laxepunctatus Schmidt, 1910: 356; Blackwelder 1944: 212.   
 Aphodius (Blackburneus) laxepunctatus; Schmidt 1913: 137; Dellacasa 1988: 137.   
 Blackburneus laxepunctatus; Skelley et al. 2007: 2.   
 Typelocality. Sao [=São] Paulo, Brasilien [Brazil].   
 Type repository. Naturhistoriska Riksmuseet, Stockholm (type examined).   
 Redescription. Length 3.0- 4.5 mm; moderatelyelongate, convex, shiny, glabrous. Reddish-brown; elytral suture darkened, legs dark reddish; antennal club pale testaceous. Head with epistome convex on disc, superficially alutaceous, doubly irregularly punctured; smaller very fine punctures scattered throughout, mixed with few much larger onesmainly towardfrontal suture; clypeus slightlysinuate at middle, round at sides, finely bordered, edge glabrous and moderately upturned: genae small, round, not ciliate, not protruding from the eyes; frontal suture finely impressed, sunk at middle, somewhat raised laterally; genal sutures distinctly raised; front dually and moreregularly punctured than epistome; eyesunusually large, their diameter equal to one third of the distance between them. Pronotum moderately transverse, convex, dually punctured; small very fine punctures more or less regularly sparse throughout; larger coarser punctures, seven toeight times larger than small ones, irregularly sparse, denser on sides; latter slightly curved, finely bordered; hind angles obtusely round; base feebly bisinuate, not bordered but marked by a row of more or less contiguous large punctures. Scutellum narrow, elongate, flat, finely punctured on basal half. Elytra elongate, somewhat broadened posteriorly; striae distinct, finely superficially punctured, not crenulate; interstriae flat, almost imperceptibly sparsely punctured. Hind tibiae superior apical spur shorter than first tarsal segment; latter as long as following three combined. Male: head and pronotum somewhat more sparsely and less coarsely punctured; pronotum not narrowed frontward; fore tibiae apical spur stouter, outward and downward bent; aedeagus Fig. 114-115. Female: headand pronotumsomewhat more densely andmore coarsely punctured; pronotumnarrowed frontward; fore tibiae apical spur slender and almost straight.   
 Type material. 1 female (lectotype, herein designated, NHRS) bearing the following labels: 1) white (handwritten): Sao Paulo / Brasilien; 2) white (handwritten): laxepunct. / m.; 3) red (printed): Typus; 4) white (printed): 121; 5) red (printed): Aphodius laxepunctatus / Schmidt A., 1910 / Lectotypus / Dellacasa M. & G. des., 2002. Other 2 females (paralectotypes, NHRS) with the same collecting data as lectotype.   
 Material examined. ARGENTINA: Prov. Tucuman, C. Bruch leg. (1 ex., NHRS); BOLIVIA: Santa Cruz, Potrerillos del Guendá, 40 km NW Santa Cruz de la Sierra, 17 o 40’26”S- 63 o 27’44”W, 5-20.XI.2004, leg. B.K. Dozier (blacklight) (2 exx., FSCA); BRAZIL: Amapa, Macapa, 25.II-25.III.1993, leg. N. Dégallier (piège d’interception) (1 ex., BCSC); Amazonas, Reserva Ducke, 26 Km NE Manaus, 4.IV.1978, leg. B. C.   
 Ratcliffe (1 ex., ISEA); Amazonas, Tefé, VII.1984, leg. L. E. Peña (3 exx., DCGI); Amazonas, Fazenda Esteio, Rd ZF 3 Km 23; 20.VII.1985, leg. B. Klein (bait: human dung, hab.: Mature Forest Reserve) (1 ex., DCGI; 2 exx., FSCA); idem, 7.VI.1986 (2 exx., FSCA); idem, 19.VII.1985 (1 ex., FSCA); Amazonas, 70 Km Nof Manaus, Fazenda Porto Alegre, 14.VI.1986, leg. B. Klein (bait: human dung, hab.: Mature Forest Reserve) (1 ex., DCGI; 3 exx., FSCA); Amazonas, 70 Km Nof Manaus, Fazenda Dimona, 20.VI.1986; leg. B. Klein (bait: human dung, hab.: Mature Forest Reserve) (6 exx., FSCA); idem, 19.VI.1986 (1 ex., FSCA); Amazonas, 70 Km Nof Manaus, Fazenda Esteio, 2.VI.1986, leg. B. Klein (bait: beef, hab.: Mature Forest Reserve) (1 ex., FSCA); Goiás, Santo Antonio do Descoberto, 16.XI.1997, leg. N. Dégallier (1 ex., DCGI); Minas Gerais, Cordisburgo, F. Pontinha, VII.1994, leg. de Mello (1 ex., ISEA); Pará, Barcarena, 12- 26.VI.1991, leg. N. Dégallier (piège d’interception) (1 ex., BCSC); idem, 19-30.IX.1990, leg. N. Dégallier (piège d’interception) (14 exx., BCSC; 7 exx., DCGI); Pará, Tacurui, 28.XI-11.XII.1989, leg. N. Dégallier (1 ex., BCSC); Rondonia, 62 Km SW Ariquemes, Fzda. Rancho Grande, 10.XI.1994, leg. C. O’Brien (blacklight trap) (2 exx., DCGI); idem, 12.XI.1995, leg. C. O’Brien (black light trap) (4 exx., FSCA); idem, 3- 15.XII.1996 (4 exx., DCGI; 24 exx., FSCA) idem, 8-20.XI.1994, leg. J. Eger (blacklight trap) (1 ex., FSCA); idem, 8-20.XI.1994, leg. J. Eger & C. O’Brien (blacklight) (5 exx., FSCA; 1 ex., ISEA); Rondonia, 9 Km NE Cacaulandia, 17.I.1997, leg. K. Vulinec & D. Mellow (human dung pitfall trap) (1 ex., FSCA); Sao Paulo, Sidrolandia, route Campo-Grande, Pk 68, 23.V-10.VI.1992, leg. N. Dégallier (piège d’interception) (1 ex., DCGI); Serra do Navio, Amapa, 1-14.V.1991, leg. N. Dégallier (piège d’interception) (9 exx., BCSC; 4 exx., DCGI); Sto. Paulo d’Olivença, M. de Mathan, VI-VII.1883 (1 ex., DCGI); State of Sao Paulo, Piracicaba, 29.XII.1965, leg. C. A. Triplehorn (blacklight trap) (1ex., FSCA); COSTA RICA: Heredia, Est. Biol. La Selva, 10 o 26’N- 84 o 01’W, 22.VI.1998, leg. C. Carlton & A. Tishechkin (F.I.T.) (1 ex., DCGI); FRENCH GUIANA: Cabassou, III.1979, leg. N. Dégallier (5 exx., DCGI); Entomotech Lodge, 30 Km SE Roura on Kaw Rd., 04 o 33.570’N- 52 o 12.438’W, m 300, 1-12.XII.2002, leg. J. E. Eger (BL Trap) (1 ex., FSCA); Hwy N 2 to Regina, 67 Km Sof Cayenne, 1.VI.1986, leg. E. G. Riley & D. A. Rider (1 ex., FSCA); Ile de Cayenne, II.1979, leg. N. Dégallier (1 ex., DCGI); Roura, Cacao, 26-27.V.2005, leg. A. J. Hielkema, in pitfall with human excrement in forest (1 ex., HCGN); Roura 8.4 Km SSE, 04 o 40’41”N- 52 o 13’25”W, m 200, 29.V-10.VI.1997, leg. J. Ashe & R. Brooks (flight int. trap) (2 exx., CNCI; 1 ex., DCGI); Saül, VII.1973, leg. N. Dégallier (1 ex., DCGI); PARAGUAY: Paraguay (1 ex., NHRS); Paraguay, 188[?], leg. Dr. Drake (1 ex., NHRS); Alto Paraná, 16.XI.1990, leg. L. E. Peña (1 ex., DCGI); Dpt. Guaira, Calle Florida, VIII.1993 (1 ex., DCGI); PERU: Loreto, 80 Km NE Iquitos, Explorama Lodge, Rio Yanamono, 1 Km from Amazon R., 1-5.IX.1992, leg. P. E. Skelley (human dung) (1 ex., DCGI); SURINAME: Commewijne, Akintoscela, Celos, 05 o 16’17”N- 54 o 55’15”W, m 50, 2.VII.1999, leg. Z. Falin (ex dung trap) (2 exx., DCGI; 2 exx., ISEA); Sipaliwini, Raleighvaller N. P., E-Bank Coppename, 11-13.V.1998, leg. A. J. Hielkema (1 ex., HCGN); VENEZUELA: Bolivar, Rio Chicanan, 40 Km SW El Dorado, 22-23.VII.1986, leg. B. Gill (1 ex., DCGI; 2 exx., ISEA).   
 Distribution. Argentina, Bolivia, Brazil, Costa Rica, French Guiana, Paraguay, Peru, Suriname, Venezuela.   
 Bionomics. Adults seem to be active all year round. Most of the specimens examined were collected at light, with interception traps, or with pitfall traps baited with human dung.
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 26-27, DOI: 10.5281/zenodo.10090539