Operclipygus formicatus Caterino & Tishechkin 2013

Length: 5.67 mm, width: 4.66 mm; body piceous, elongate oval, strongly convex; frons broad, sides of frontal stria divergent between eyes, angulate mediad above antennal bases, arcuate dorsad at middle; supraorbital stria fine, narrowly detached from sides of frontal stria; epistoma depressed at middle, slightly elevated at sides, truncate apically; labrum rather narrow, apically arcuate; antennal club small, barely twice as long as antennomere 8, only sparsely tomentose on dorsal and ventral bases; mandibles broad, left mandible lacking basal tooth, right mandible with small, blunt (worn?) basal tooth; pronotum with faint, punctiform prescutellar impression, disk impunctate, with only inconspicuous ground punctation; marginal pronotal stria complete along lateral and anterior edges; lateral submarginal stria complete along side, bent inward at front, narrowly detached from anterior submarginal stria which is very finely impressed, faintly recurved posterad at sides; median pronotal gland openings located behind ends of anterior submarginal stria, about one-fourth pronotal length from anterior margin; elytron with two complete epipleural striae, inner and outer subhumeral striae complete, simple, dorsal striae 1-4 complete, all extended mediad along basal margin as fine striae, 5th stria present only in apical fourth, sutural stria present in apical half; elytral disk lacking apical punctures; prosternal keel weakly emarginate at base, narrow, with carinal striae complete, weakly divergent, free basally and apically; secondary carinal striae present, parallel to basal half of carinal striae; prosternal lobe truncate apically, with complete marginal stria diverging straight posterad at sides, nearly meeting lateral prosternal striae; mesoventrite narrow, anterior margin very weakly produced, with complete marginal stria; metaventrite narrowly depressed along midline, impunctate; mesometaventral stria subangulately arched forward, extending to about one-fourth behind anterior mesoventral margin, continued by lateral metaventral stria posterolaterad to outer third of metacoxa; 1st abdominal ventrite with one complete lateral stria; all tibiae broadly expanded, prothoracic tibiae with outer edge evenly arcuate, with fine marginal teeth, meso- and metatibiae approximately triangular, with apical width equal to about three-fourths tibial length, each bearing fine marginal spines; meso- and metatarsi short, retractable into poorly developed apical tibial grooves; propygidium and pygidium with ground punctation very fine, each bearing irregularly sparse, small round punctures; marginal sulcus of pygidium fine, complete. Male: not known.