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 Length: 1.25–1.50 mm, width: 1.00–1.15 mm; frons flat to convex, frontal stria complete, more or less transverse across front, not displaced dorsad, antennal bases not particularly prominent; epistoma weakly depressed in middle, narrowly convex along anterior margin; labrum about twice as wide as long, straight across apical margin; pronotal disk with narrow prescutellar impression about 1.5× length of scutellum; ground punctation of pronotal disk fine and sparse, slightly more strongly impressed toward sides, with few (<8) small secondary punctures at sides; lateral submarginal pronotal stria complete, curving inward in front and ending freely; anterior submarginal pronotal stria recurved posterad at sides about one-third length of pronotal disk; median pronotal gland openings close, laterad anterior submarginal stria, sometimes disrupting its path, about 6 puncture widths from anterior margin; elytra with outer subhumeral stria present in apical half, inner subhumeral stria absent, 1st stria complete to base, tending toward obsolete in apical fourth, striae 2-3 complete, 4th stria varied, from present in only apical half to very nearly complete, 5th stria present in apical half, sutural stria present in apical three-fourths; prosternal keel produced at base, carinal striae present in basal three-fourths of keel, slightly divergent and separate at base, united anteriorly; mesoventrite emarginate anteriorly, with complete marginal stria; mesometaventral stria broadly angulate forward to middle of mesoventral disk, continued by lateral metaventral stria extending posterolaterally toward posterior corner of metepisternum; 1st abdominal ventrite with inner lateral stria weakly abbreviated apically, outer complete, parallel; propygidium with very fine, sparse ground punctures and small, round, shallow punctures separated by about 1.5× their diameters; pygidium with fine, dense ground punctures only, lacking coarser punctures, even along basal margin; marginal pygidial sulcus fine, shallow, frequently obsolete toward basal corners. Male genitalia indistinguishable from those of Operclipygus subterraneus (see Figs 36F–H). 


Creative Commons Attribution 3.0 (CC BY 3.0)

© Michael S. Caterino, Alexey K. Tishechkin

Source: ZooKeys

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