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) Author Dellacasa, Marco Author Dellacasa, Giovanni Author Gordon, Robert D. text Insecta Mundi 2011 2011-12-16 2011 204 1 52 journal article 10.5281/zenodo.10090539 1942-1354 10090539 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.