Operclipygus assimilis Caterino & Tishechkin 2013

This species is extremely similar to Operclipygus gratus, differing as follows: length: 1.97 mm, width: 1.47 mm; anterior half of frons and epistoma depressed at middle; frontal stria fine, transverse; apical margin of epistoma convex, but not subcarinate; prescutellar impression elongate, about twice length of scutellum, acute anteriorly; pronotal disk with ground punctation conspicuous, with numerous (~40) punctures at sides; lateral submarginal pronotal stria complete, curved inward, nearly meeting anterior submarginal stria; anterior submarginal stria strongly recurved, extending posterad about one-fourth pronotal length; median pronotal gland openings laterad recurved arms of anterior submarginal stria, about 8 puncture widths from anterior margin; propygidium with uniform, shallow, round punctures separated by about half their diameters; pygidium with ground punctation moderately dense, with much coarser punctures irregularly but rather densely interspersed; marginal pygidial sulcus complete, deep, crenulate on inner and outer edges. Male genitalia: indistinguishable from those of Operclipygus gratus (see Figs 43A–C), except for S9 (Fig. 43M) rounded at base, and its lateral flanges less strongly differentiated from apical sides.