Operclipygus bidessois (Marseul, 1889)

Caterino, Michael S. & Tishechkin, Alexey K., 2013, A systematic revision of Operclipygus Marseul (Coleoptera, Histeridae, Exosternini), ZooKeys 271, pp. 1-401 : 175-178

Operclipygus bidessois (Marseul, 1889) Fig. 46DMap 17

Phelister bidessois Marseul, 1889: 147; Operclipygus bidessois : Wenzel (1976: 257).

Phelister subplicatus Schmidt, 1893b: 88; Operclipygus subplicatus : Wenzel (1976: 260); syn. n.

Type locality.

Not specified beyond Brazil.

Type material.

Phelister bidessois : Lectotype, here designated: [with red ‘type’ disk] “Braz.” / " Phelister bidessois Type. Mars"[in Lewis’ writing]/ “bidessois” / "Marseul 14.12.86" / "Brazil, coll. Saunders" / "LECTOTYPE Phelister bidessois Marseul M.S.Caterino & A.K.Tishechkin des. 2010" (BMNH). This species was described from an unspecified number of specimens, and the lectotype designation fixes primary type status on the only known original specimen. Phelister subplicatus : Lectotype, here designated: “Bahia” / “Type” / " Operclipygus subplicatus (Schmidt) N. Degallier" / "LECTOTYPE Phelister subplicatus Schmidt M.S.Caterino & A.K.Tishechkin des. 2010" (ZMHB). This species was described from an unspecified number of specimens, and the lectotype designation fixes primary type status on the only known original specimen.

Other material.

BOLIVIA: La Paz: 1: Tumupasa, 1921-1922, W.M. Mann (USNM); Santa Cruz: 5: 3.7km SSE Buena Vista, Flora y Fauna Hotel, 17°29.9'S, 63°33.2'W, 400-440m, 2-4.xi.2002, FIT, R. Leschen (AKTC, MSCC), 3: 14-16.x.2000, R. Morris (AKTC). BRAZIL: Distrito Federal: 4: Brasilia, 15°47'S, 47°55'W, 15-30.iii.1997, cerrado, dead fish bait (CHND, UFPR); 4: Res. Ecol. de IBGE, Brasilia, 15°5.5'S, 47°53'W, 6.i.1997 (CHND), 3: 20.i.1998 (CHND), 5: 30.ix.1997 (CHND), 1: 22.xii.1997 (CHND); Maranhão: 1: Mirador, Caicarinha, 6°22'S, 44°22'W, 1.v.1993, FIT (CHND); Mato Grosso: 1: Querencia, Fazenda São Luiz, 12°35.819'S, 52°22.492'W, ii.2009, FIT, R. Andrade (CEMT); 1: Diamantino, Serra do Tombador, 14°36'47"S, 56°15'12"W, 450m, 14.i.2001, FIT, cerrado forest, F. Genier & F. Vaz-de-Mello (CMNC); 1: Diamantino, Vale da Solidao, 14°21.63'S, 56°7.4'W, 640m, 22. xii– 26.i.2009, FIT, D.C.T. Oliveira (CEMT); 1: Diamantino, Faz. São Joao, 14°23'38"S, 56°08'50"W, 520m, 13.i.2001, cerrado, carrion, F. Genier & F. Vaz-de-Mello (CMNC); 2: Cuiabá, Fazenda Mutuca, 15.3145°S, 55.9703°W, 6.xii.2008, FIT, F.H. Gava & J.R. Rocha, 2: 20.xii.2008, 2: 11.x.2008, 1: 20.iii.2009, 2: 18.x.2008, 2: 25.x.2008, 1: 29.x.2008, 2: 1.xi.2008, 1: 22.xi.2008 (MSCC, AKTC, UFPR, CEMT); 1: Estac. Exper. da CEPLAC, Alta Floresta, 9°53.85'S, 56°17.1'W, 5.ii.2010, FIT, V. Goncalves (MSCC); Mato Grosso do Sul: 1: Itaum, 22°00'S, 55°20'W, iii.1973, malaise trap (CHND); Minas Gerais: 1: Pedra Azul, 700m, xi.1972, Seabra & Oliveira (UFPR); Pará: 1: Amazons, viii.1875 (BMNH); Pernambuco: 1: G. Lewis (FMNH); Rio Grande do Norte: 1: Natal, viii.1949, M. Alvarenga (UFPR); Santa Catarina: 1: Nova Teutonia, 2.iii.1951, F. Plaumann (FMNH). FRENCH GUIANA: 3: Le Gallion, 4°47'N, 52°26'W, 8.i.1978, dead snake bait (CHND, MNHN), 3: 12-18.xii.1977, dead snake bait (CHND); 2: Belvèdére de Saül, point de vue, 3°1'22"N, 53°12'34"W, 31.ix.2010, Window trap, SEAG (MNHN), 1: 10.xii.2010, Window trap, SEAG (MNHN). NICARAGUA, Rio San Juan: 1: Refugio Bartola, 60km SE San Carlos, 10°58.40'N, 84°20.30'W, 100m, 25-28.v.2002, FIT, R. Brooks, Z. Falin, S. Chatzimanolis (SEMC). PANAMA: Chiriquí: 1: Chorcha Abajo., 8°22'N, 82°17'W, 19-20.i.2001, pitfall, in Orthogeomys burrow, W. Godwin & A. Gillogly (AKTC); Colón: 3: Parque Nac. San Lorenzo, Achiote, Cafetal A Dist., 09°12'N, 79°58'W, 50m, 7-21.v.2007, FIT, A. Mercado (AKTC, GBFM). PARAGUAY: Boquerón: 1: Loma Plata, 22°23'S, 59°51'W, 15.i.1993, A. Sanchez (CHND), 3: 24. i– 7.ii.1993, P. Gerlach (CHND). VENEZUELA: Bolívar: 2: Guri, 9.vii.1998, FIT, in dry forest, H. & A. Howden (CMNC).

Diagnostic description.

This species is extremely similar to Operclipygus farctus , differing mainly in the following characters: length: 1.68-1.87 mm, width: 1.37-1.53 mm; supraorbital stria complete and continuous with frontal stria; base of pronotum with short, distinct plicae in front of 3rd elytral striae; sides of pronotal disk with more numerous punctures; elytra with 4th dorsal stria varied, from present only in apical half to complete; elytral apex with numerous marginal setae, subserially arranged, often vaguely connecting apices of striae; mesoventral marginal stria interrupted by more strongly anteriorly arched mesometaventral stria; propygidium with coarse punctures shallower, subocellate, slightly sparser; pygidial ground punctation fine and sparse, with coarser punctures uniformly scattered; marginal pygidial sulcus impressed around apical margin only, obsolete from most of basal half. Male genitalia indistinguishable from those of Operclipygus farctus (see Figs 48 A–D, K).

Remarks.

This species is generally very similar to Operclipygus farctus , above, but may be easily separated by its pronotal plicae, and very strongly abbreviated marginal pygidial sulcus (Fig. 46D).

The only characters that have been used to separate Operclipygus subplicatus from Operclipygus bidessois have been minor variations in elytral striation (particularly whether the 4th dorsal stria was complete or not). This character is quite variable, and we can find no substantial differences between these types otherwise.