Operclipygus bulbistoma Caterino & Tishechkin 2013

Length: 1.78 mm, width: 1.12 mm; body rufobrunneus, very elongate, parallel-sided, subdepressed; frons flat, with sides of frontal stria more or less parallel between eyes, central part complete, arching dorsad at middle; supraorbital stria weak, fragmented at middle, detached from frontal stria; epistoma strongly convex, with conspicuous longitudinal waves of microsculpture on the sides; labrum rounded at sides, narrowing to apex, apex appearing narrowly emarginate, with an apical concavity encircled by a sharp carina; left mandible with prominent bifid tooth; right mandible with smaller but similar bifid tooth; pronotal disk with short, narrow, distinct prescutellar impression, but with longer vague depression extending forward in posterior half of disk; ground punctation fine, but relatively conspicuous, with ~15 coarser punctures at sides; lateral submarginal stria absent from sides, only present as short fragments in anterior corners that meet the anterior submarginal stria at a narrow angle; anterior marginal stria weak at front, interrupted behind head; anterior submarginal stria strongly recurved straight posterad reaching behind middle of pronotum; median pronotal gland openings beyond ends of anterior stria, about two-thirds pronotal length from anterior margin; elytra with one complete epipleural stria; outer subhumeral stria complete, inner subhumeral stria absent, striae 1-4 complete to base, striae 1-2 barely obsolete at apex, 5th stria present in apical third, sutural stria present in apical four-fifths, the 2nd-5th striae weakly expanded at apices; prosternal keel weakly produced at base, with very shallow median emargination, carinal striae faint, present in basal half only, not connected anteriorly or posteriorly; prosternal lobe lacking marginal stria; mesoventrite shallowly, broadly emarginate, with marginal stria mostly absent, only weakly present at sides; mesometaventral stria arched forward to near mesoventral margin, continued by lateral metaventral stria extending posterad to inner third of metacoxa; 1st abdominal ventrite with inner lateral stria complete, outer abbreviated and divergent posteriorly; profemur strongly produced along midanterior margin, the protibia correspondingly bent at middle; propygidium with moderately large, shallow ocellate punctures separated by about their widths; pygidium with fine, sparse ground punctation, coarser punctures ocellate, sparse, separated by slightly more than their diameters; marginal pygidial sulcus absent, although vague fragments of a marginal depression can be seen near apex. Male not known.