Operclipygus occultus Caterino & Tishechkin 2013

This species is very similar to Operclipygus dubius, differing mainly in the following characters: length: 1.59 mm, width: 1.12 mm; frons weakly depressed, frontal stria complete; pronotal disk with prescutellar impression short and very narrow, few coarse punctures posterolaterad ends of anterior stria; lateral submarginal pronotal stria fine, present in anterior corners only; anterior submarginal pronotal stria fine, recurved posterolaterally to about one-third from anterior pronotal margin; elytra with dorsal stria 1 obsolete in apical third, striae 2-3 complete, 4th stria present in only apical half; prosternal keel with carinal striae subparallel in apical three-fourths, only weakly divergent basally; marginal mesoventral stria complete; metaventrite with shallow longitudinal depression; propygidium with dense, small, rather deep punctures; pygidium with fine dense ground punctation, coarser punctures dense along basal margin, sparsely scattered in apical two-thirds; marginal pygidial sulcus deep, coarsely crenulate. Male genitalia (Figs 33B, D–F) as for group description, the apices of S8 strongly narrowed, with only a couple inconspicuous inner apical setae, curved to ventral apex, bearing 4 or 5 long apical setae, with distinct submarginal sclerotization along apical margins; T9 with apices elongate subtriangular, inner edges parallel; T10 not divided; S9 not desclerotized along midline, truncate at base, with shallow, equilateral apical emargination; tegmen widening to near apex, narrowed to truncate apex; median lobe narrowed proximad gonopore.