Operclipygus prolixus Caterino & Tishechkin 2013

Length: 2.22–2.65 mm, width: 1.84–2.12 mm; body piceous, elongate oval, sides of elytra nearly parallel, sides of pronotum curving inward in front, depressed; frons depressed in middle, sides of frontal striae rounded, ending above antennal cavity, absent across front; supraorbital stria complete, narrowly detached from sides of frontal stria; labrum about 2.5× as wide as long, weakly asymmetrical at apex, left side more strongly produced; left mandible untoothed, right mandible with small, subacute basal tooth; pronotal disk faintly and narrowly impressed in prescutellar region, not broadly flattened or plicate, ground punctation fine and sparse, with numerous punctures in lateral band; marginal stria absent behind head; lateral submarginal stria continuous with anterior submarginal stria, diverging slightly from margin behind median pronotal gland opening; anterolateral gland opening closer to pronotal corner than to median opening; elytron with single complete epipleural stria, outer subhumeral stria interrupted at middle, basal fragment variably abbreviated, inner subhumeral stria nearly complete, barely abbreviated at both ends, striae 1-3 complete, 4th stria present in apical half to two-thirds, 5th stria present in apical half, sutural stria present in apical two-thirds; elytral disk usually with distinct series of very small apical marginal punctures; prosternal keel evenly but weakly produced at base, carinal stria complete, connected anteriorly and posteriorly; mesoventral margin broadly and shallowly emarginate, with complete marginal stria; mesometaventral stria subangulately arched forward at middle, reaching middle of mesoventral disk, continued posterad by lateral metaventral stria, extending to middle of metacoxa; 1st abdominal ventrite with inner lateral stria complete, outer abbreviated; propygidium with rather sparse ground punctation, coarser punctures nearly round, irregularly separated by about their diameters or slightly less; pygidium with fine, dense ground punctation, slightly coarser punctures interspersed mainly near base, frequently inconspicuous; marginal pygidial sulcus quite varied, generally fine, obsolete toward base, frequently deep apically, obsolete in basal half. Male: genitalia largely similar to those of Operclipygus farctus (see Figs 48A–D), except T8 with midlateral desclerotization not distinct; S9 narrower at base, not obviously asymmetrical; tegmen (Fig. 48P) not as strongly narrowed to base, apices not as strongly narrowed, apical third more strongly bend ventrad.