Operclipygus ibiscus, Caterino, Michael S. & Tishechkin, Alexey K., 2013

Caterino, Michael S. & Tishechkin, Alexey K., 2013, A systematic revision of Operclipygus Marseul (Coleoptera, Histeridae, Exosternini), ZooKeys 271, pp. 1-401 : 153-156

Operclipygus ibiscus sp. n. Figs 40F, K41 A–CMap 15

Type locality.

PANAMA: Colón: San Lorenzo Forest [9°17'N, 79°58'W].

Type material.

Holotype male: "PANAMA: Colón Pr., San Lorenzo Forest. 9°17'N, 79°58'W. Flight Intercept FIT-C3-12 12-13 May 2004 A. Tishechkin. IBISCA ‘04” / "LSAM 0111298" (FMNH). Paratypes: (103): same data as type, except as noted: 1: 23-24.ix.2003 (LSAM), 3: 27-28.ix.2003 (LSAM, FMNH), 2: 30-1.x.2003 (LSAM), 1: 1-3.x.2003 (LSAM), 4: 4-6.x.2003 (LSAM, MSCC, AKTC), 2: 8-9.x.2003 (LSAM, CHND), 1: 9-11.x.2003 (LSAM), 3: 13-14.x.2003 (LSAM, CMNC), 4: 14-17.x.2003 (LSAM), 3: 17-18.x.2003 (LSAM), 3: 17.x.2003, R. Didham, L. Fagan (LSAM), 1: 18-21.x.2003 (LSAM), 6: 19-21.x.2003 (LSAM), 4: 21-22.x.2003 (LSAM), 1: 24.x.2003, in rotting fruit of Bombacaceae tree, L. Cizek (LSAM), 1: 25-26.x.2003 (LSAM), 1: 28-30.x.2003 (LSAM), 4: 29.x.2003, R. Didham, L. Fagan (GBFM, LSAM), 3: 11-12.v.2004 (LSAM), 2: 12-13.v.2004 (LSAM), 2: 14-15.v.2004 (LSAM), 6: 15-17.v.2004 (GBFM, LSAM), 1: 15-25.v.2004, R. Didham (LSAM), 6: 17-18.v.2004 (LSAM), 4: 18-19.v.2004 (LSAM), 3: 19-20.v.2004 (LSAM), 6: 20-21.v.2004 (LSAM), 9: 21-24.v.2004 (LSAM), 2: 24-25.v.2004 (LSAM), 1: 25. v– 5.vi.2004, R. Didham (LSAM), 8: 25-26.v.2004 (GBFM, LSAM), 1: 26-28.v.2004 (LSAM), 3: 26-29.v.2004 (LSAM), 1: 4-17.vi.2004, M. Rapp (LSAM).

Other material.

PANAMA: Colón: 1: Parque. Nac. Soberania, Pipeline Rd. Km 6.1, 09°07'N, 79°45'W, 40m, 7-21.vi.1995, FIT, J. Ashe, R. Brooks (SEMC); Bocas del Toro: 1: Almirante, 23.iii.1959, decayed fibrous palm trunk, H.S. Dybas (FMNH); 1: Almirante, 1.iv.1959, forest litter, H.S. Dybas (FMNH); Chiriquí: 2: 4km N Sta. Clara Hartmann's Finca, 1500m, 30. vi– 13.vii.1982, FIT, B.D. Gill (BDGC); Coclé: 3: 7.2km NE. El Cope, 08°37'N, 80°35'W, 730m, 20. v– 7.vi.1995, FIT, J. Ashe, R. Brooks (SEMC); Panamá: 1: Barro Colorado Isl., 09°11'N, 79°51'W, 8.vii.1994, FIT, D. Banks (SEMC), 1: 1.viii.1994, FIT, D. Banks (SEMC), 1: 24.viii.1994, FIT, D. Banks (SEMC), 1: 16.ii.1976, Pseudobombax flower fall, A.F. Newton (FMNH), 1: 1-5.vii.2000, FIT, S. Chatzimanolis (SEMC),1: 22-25.vi.2000, FIT, S. Chatzimanolis (SEMC), 1: i–iii.1944 (FMNH); 7: Chepo-Carti Rd., 400m, vi.1982, FIT, B.D. Gill (BDGC, AKTC), 1: vii.1982, FIT, B.D. Gill (CHSM); 8: Cerro Azul, ca., 2000ft, 21.ii.1976, flood debris, A.F. Newton (FMNH); 1: Nusagandi, Ina Igar trail, 18-21.v.1993, FIT/pitfall, primary forest, E.G. Riley (TAMU); 1: Old Plantation Rd. 6.9km S Gamboa, 09°05'N, 79°40'W, 80m, 7-22.vi.1995, FIT, J. Ashe, R. Brooks (SEMC). COSTA RICA: Heredia: 2: La Selva Biol. Stn., 10°26'N, 84°01'W, 21.vi.1998, FIT, C.E. Carlton & A.K. Tishechkin (LSAM), 3: 22.vi.1998 (LSAM), 3: 23.vi.1998 (LSAM), 2: 24.vi.1998 (LSAM), 2: 25.vi.1998 (LSAM), 5: 26.vi.1998 (LSAM), 5: 27.vi.1998 (LSAM), 1: 28.vi.1998 (LSAM), 4: 29.vi.1998 (LSAM), 1: 24.ii.1992, FIT, W. Bell (SEMC), 1: 16.vi.2012, OTS Beetle Course, DNA Extract MSC-2307 (SBMNH), 1: 19.iii.1992, FIT, W. Bell (SEMC), 1: 6.vii.2005, FIT, M. Ferro (AKTC), 1: 8.vii.2005, FIT, M. Ferro (AKTC); 1: 10kmW. Puerto Viejo, 170m, 2-5.iii.1991, FIT, H. & A. Howden (CHSM); Limón: 3: Area Cons. Tortuguero, Sector Cerro Cocori, Fca. de E. Rojas, 150m, ii.1993, E. Rojas (INBIO), 1: v.1991, E. Rojas (INBIO), 6: vi.1991, E. Rojas (INBIO), 1: ix.1991, E. Rojas (INBIO), 2: x.1991, E. Rojas (INBIO), 1: iii.1992, E. Rojas (INBIO), 6: iv.1992, E. Rojas (INBIO), 3: iv.1993, E. Rojas (INBIO), 2: ix.1993, E. Rojas (INBIO), 1: v.1993, E. Rojas (INBIO), 2: xii.1992, E. Rojas (INBIO), 3: 26.vii-2.viii.1992, E. Rojas (INBIO), 1: 9-30.xi.1992, E. Rojas (INBIO); 1: Area Cons. Tortuguero, Rio Sardinas, R.N.F.S. Barra del Colorado, 50m, v.1994, F.V. Araya (INBIO), 1: 10m, 1-14.ii.1994, F.V. Araya (INBIO); 1: Sardinas, Barra del Colorado, 15m, 28. i– 12.ii.1995, F. Araya, (INBIO), 2: 26. iv– 3.v.1995, F. Araya, (INBIO), 2: 4-11.i.1995, F. Araya, (INBIO); 2: 3km N. del Puente Rio Suerte, Ruta Puerto Lindo, Cedrales de la Rita, 10m, viii.1996, FIT, E. Rojas (INBIO); 1: Amubri, 70m, 1-22.x.1994, G. Gallardo, (INBIO); Puntarenas: 1: Res. Biol. Carara, Est. Quebrada Bonita, 100m, ii.1995, R. Guzman, (INBIO), 1: 50m, iv.1994, R. Guzman, (INBIO); 1: Rancho Quemado, Peninsula de Osa, 200m, ix.1991, F. Quesada, (INBIO), 1: viii.1991, F. Quesada, (INBIO), 2: ix.1992, F. Quesada, (INBIO), 2: v.1992, F. Quesada y G. Varela, (INBIO), 2: vi.1992, F. Quesada, (INBIO), 1: vii.1992, M. Segura, (INBIO), 1: 12.v.1993, 24.v.1993, A. Gutierrez, (INBIO); 1: Est. Esquinas, Peninsula de Osa, x.1993, M. Segura, (INBIO); 1: Bosque Esquinas, Peninsula de Osa, 200m, vi.1994, M. Segura, (INBIO); 1: Reserva Forestal Golfo Dulce, Est. Agujas, Golfito, Sendero Zamia, 250-350m, 5-7.xi.1999, FIT, A. Azofeifa (INBIO); 1: Est. Biol. Las Cruces, Coto Brus, 8°47'N, 82°57'W, 1100m, 22-23.iii.2002, FIT, A.K. Tishechkin (LSAM), 1: 1100m, 2-8.iv.2002, FIT, A.K. Tishechkin (LSAM), 1: 1100m, 31.iii-1.iv.2002, FIT, A.K. Tishechkin (LSAM), 1: 1330m, 28-31.v.2004, FIT, J.S. Ashe, Z. Falin, I. Hinojosa (SEMC), 1: 1330m, 28-30.v.2004, FIT, J.S. Ashe, Z. Falin, I. Hinojosa (SEMC); 1: Est. Biol. Las Cruces, San Vito, 8°46'N, 82°58'W, 4000ft, 19.iii.1973, Berlese, stream bed litter, Virgin forest, J. Wagner, J. Kethley (FMNH), 7: 17.viii-12.ix.1982, FIT, B.D. Gill (AKTC), 2: 1200m, 1-30.vii.1982, B.D. Gill (BDGC); 2: Est. Biol. Las Alturas, Coto Brus, 8°57'N, 82°52'W, 1550m, 30.iii-4.iv.2002, FIT, A.K. Tishechkin (LSAM), 1: 25-30.iii.2002, FIT, A. Cline & A. Tishechkin (LSAM); 1: Est. F.N. Aguas Buenas, Rincon, 7km W. Osa Penn., 50m, 21-25.vi.1997, FIT, S. & J. Peck (SEMC); 1: Estrella Valley, Pandora, 1-16.iii.1984, FIT, H. Howden & G. Manley (CHSM).

Diagnostic description.

This species is very similar to the preceding, differing in the following characters: length: 1.53-1.78 mm, width: 1.25-1.44 mm; frontal stria complete, rather evenly rounded from sides to front; lateral pronotal complete; pronotum finely punctate, lacking any larger lateral punctures; pronotum depressed, but lacking distinct antescutellar impression; lateral metaventral stria extending obliquely laterad just behind postmesocoxal stria; 1st abdominal ventrite with the two lateral striae fine and very close at base, diverging posteriorly, outer stria frequently abbreviated or fragmented; outer subhumeral stria complete, fine, occasionally fragmented basally, elytral striae 1-3 complete, 4th and 5th striae present in apical third, sutural stria present in apical two-thirds; elytral striae 3-5 weakly expanded at apices; marginal pygidial sulcus deep, well developed, somewhat crenulate; pygidium with fine, dense ground punctation interspersed with sparse, slightly coarser secondary punctures. Male genitalia similar in most respects to those of Operclipygus fusistrius and Operclipygus diffluens (see Figs 40 B–D), but T8 (Fig. 40F) with accessory sclerites present, submarginal desclerotization of T8 extending to near midpoint of segment, and tegmen (Fig. 40K) narrower and more elongate.

Remarks.

Among the species that exhibit a subapical desclerotization along the apical emargination of the male 8th tergite (Fig. 40F), Operclipygus ibiscus and Operclipygus novateutoniae are unusual in having a complete outer subhumeral stria. In addition, the absence of coarse punctures on the sides of the pronotum (Fig. 41B), weakly apically widened elytral striae (Fig. 41A), and very closely-set lateral striae of abdominal ventrite 1 will distinguish Operclipygus ibiscus . Operclipygus fusistrius is also very similar, and has a similar distribution, but has more distinctly expanded elytral striae and clearly separated lateral striae on ventrite 1. Because there is slight variation throughout the range of this species in propygidial punctation and degree of elytral stria widening, we restrict the type series to specimens from the type locality.

Etymology.

This species’ name recognizes the IBISCA (Investigating the Biodiversity of Soil and Canopy Arthropods) project, whose 2003-04 Panamanian survey yielded the type specimens of this species.