Operclipygus fungicolus (Wenzel & Dybas, 1941)

Caterino, Michael S. & Tishechkin, Alexey K., 2013, A systematic revision of Operclipygus Marseul (Coleoptera, Histeridae, Exosternini), ZooKeys 271, pp. 1-401 : 251-253

Operclipygus fungicolus (Wenzel & Dybas, 1941) Figs 64 G–H66D–G, IMap 24

Phelisteroides fungicolus Wenzel & Dybas, 1941: 452; Operclipygus fungicolus : Wenzel (1976: 258).

Type locality.

COLOMBIA: Cundinamarca: Puerto Salgar [5°28'N, 74°39'W].

Type material.

Holotype female: “P’to. Salgar, Cund. Colomb., VII-31-38" (FMNH), examined 2006.

Other material.

JAMAICA: 1: Newport, 16.ii.1969, in rotten orange, J.H. Frank (BMNH). PANAMA: Colón: 1: San Lorenzo Forest, 9°17'N, 79°58'W, 22.ix.2003, Winkler extraction, forest litter, A. Dejean, G. Orivel, B. Cobrara, H.-P. Aberlenc & M. Leponce (GBFM), 1: 8-9.x.2003, FIT, A.K. Tishechkin (LSAM), 1: 26-27.x.2003, FIT, A.K. Tishechkin (LSAM), 2: 22-24.x.2003, FIT, A.K. Tishechkin (GBFM), 1: 30.x-2.xi.2003, FIT, A.K. Tishechkin (LSAM); 7: Parque Nac. San Lorenzo, Achiote, Cafetal A Dist., 09°12'N, 79°58'W, 0m, 26.vi-10.vii.2007, FIT, A. Mercado (AKTC, GBFM), 2: 50m, 7-21.v.2007, FIT, A. Mercado (AKTC, LSAM); 1: Parque Nac. San Lorenzo, Achiote, Pastizal B Dist., 09°12'N, 79°59'W, 10m, 12-27.v.2008, FIT, A. Mercado (GBFM); 1: Parque Nac. San Lorenzo, Achiote, Cafetal C Dist., 09°11'N, 79°58'W, 100m, 27.vi-11.vii.2007, FIT, A. Mercado (LSAM); Panamá: 1: Canal Zone, Gamboa, 1 1/2 km N, 9°07'N, 79°42'W, 17.vii.1972, cut Luehea on ground in forest, G. Otis (USNM); 1: Howard Air Force Base, 08°20'08"N, 79°50'52"W, 10m, 15-20.vii.1999, FIT, A. Gillogly & J. Woolley (TAMU).

Diagnostic description.

Length: 1.84-2.00 mm, width: 1.59-1.68 mm; body rufopiceous, elongate oval; frons weakly depressed; frontal stria with sides divergent, weakly sinuate over antennal bases, arcuate, complete across front; supraorbital stria weak, usually present only at middle, disconnected from sides of frontal stria; epistoma weakly emarginate apically; labrum about twice as wide as long, very weakly asymmetrically emarginate; pronotal sides convergent weakly rounded in basal two-thirds; prescutellar impression absent; ground punctation fine, sparse, with ~20 coarse lateral punctures; marginal pronotal stria complete along sides, very weak across front, usually fragmented or interrupted; lateral submarginal pronotal stria complete along side, curved inward anteriorly, nearly meeting anterior submarginal stria, which is weakly arcuate, barely recurved posterad at sides; median pronotal gland openings simple, situated behind ends of recurved anterior stria, about two-thirds pronotal length from anterior margin; elytra with three epipleural striae, lateral-most weakly abbreviated at base, outer subhumeral stria usually complete, fragmented to abbreviated basally, inner subhumeral stria present in apical half, dorsal striae 1-3 complete, 4th stria present in apical two-thirds, 5th stria present in apical half, sutural stria present in apical three-fourths; prosternal keel weakly projecting at base, carinal striae complete, evenly convergent to anterior arch, microsculptured within; mesoventral margin broadly emarginate, marginal stria complete; mesometaventral stria strongly, narrowly arched forward, nearly meeting marginal mesoventral stria, sinuate at sides, continued by lateral metaventral stria toward outer third of metacoxa; 1st abdominal ventrite with two lateral striae, inner stria complete, outer stria curving laterad behind metacoxa, ending in or barely passing through small lateral postmetacoxal fovea; propygidium with sparse ground punctation and moderately large, round punctures separated by slightly less than their diameters; pygidium with fine, dense but rather shallow ground punctation, with slightly coarser punctures interspersed; marginal pygidial sulcus deep, narrow along most of margin, divergent from margin slightly toward base, ending in large, deep basal foveae. Male genitalia (Figs 66 D–G, I): accessory sclerites present, small; T8 with sides evenly convergent to subtruncate apex, with deep, narrow apical emargination, basal emargination evenly arcuate, nearly meeting basal membrane attachment line, ventrolateral apodemes most strongly developed basally, evenly narrowed to apex; S9 more or less parallel-sided, with apical guides narrow, evenly developed in apical two-thirds, halves approximate along most of ventral midline; T9 parallel-sided in basal half, convergent to rather broad, blunt apices; T10 cordate, halves fused in basal two-thirds, with narrow apical emargination; S9 rather short and broad, sclerotized along midline, narrowed at middle, base broad, rounded, with weak median emargination, apex with broad emargination, apical flanges separate; tegmen short, broad, widest about one-third from apex, evenly narrowed to base, with strong mediobasal process projecting beneath about one-third from base; median lobe large, nearly as long as tegmen, with wide gonopore, proximal apodemes differentiated into short thick portion, with proximal arms prominent, sinuate; basal piece short, about one-third tegmen length.

Remarks.

This is the only species that has basolateral pygidial foveae and has the submarginal pronotal stria broken behind the eye (Fig. 64G). The pygidial foveae (Fig. 64H) are also relatively small compared to the other common foveate species ( Operclipygus fossipygus , Operclipygus gibbulus , and Operclipygus foveipygus .)