Bolitogyrus cheungi Brunke 2014

Measurements ♂ (n=2): HW/HL 1.89–2.00; PW/PL 1.58–1.69; EW/EL 1.25–1.32; ESut/PL 0.80–0.84; PW/HW 1.13–1.23; forebody length 3.8–3.9 mm. Measurements ♀ (n=1): HW/HL 1.78; PW/PL 1.57; EW/EL 1.32; ESut/PL 0.87; PW/HW 1.04; forebody length 3.7 mm. Similar to Bolitogyrus cornutus and differing only in the following: body without metallic reflections; dorsal abdomen reddish brown with darker brown paratergites, tergites VI–VII slightly darker; segment VIII pale, yellow but dark brown laterally; genital segment of both sexes dark, brownish; all femora with dark subapical band far from apex; frons finely and densely sculptured, less glossy than in Bolitogyrus cornutus; base of head with posterior protuberances less pronounced, flattened, their surface with coarse, asetose and often rugose punctures; microsculpture absent dorsally except as broken lines in depressions and near punctures and well-developed fine lines on temples; pronotal disc with moderately dense, coarse, asetose punctures and micropunctures, microsculpture absent except as broken lines in depressions and near punctures; lateral areas with denser punctation; pronotal protuberance well developed and produced into a horn in males, smaller than that of Bolitogyrus cornutus, apex rounded not truncate, one male with protuberance smaller than that of holotype male but still larger than that of female paratype, female protuberance not produced into a horn but distinct; lateral margins of pronotum strongly convergent anteriad in both sexes; with three punctures in dorsal row; median lobe divided apically into two lateral lobes without subapical teeth (Fig. 21L); in lateral view, median lobe gradually narrowed to subapex of lateral lobe, lateral lobes produced ventrad and with expanded, truncate apex (Fig. 21M); paramere slightly sinuate and reaching subapex of lateral lobe; in parameral view, median lobe subparallel until division into lateral lobes, lateral lobes slightly divergent and curving inward at apex (Fig. 21L); lateral lobes in parameral view separated by a broad, rounded emargination (Fig. 21L); paramere in parameral view dilated from midlength to subapex, then sharply narrowed, the following portion gradually narrowed to acute apex (Fig. 21L); paramere with pair of broad, lateral peg setae fields following apical and subapical margins (Fig. 21N); male sternite IX more strongly asymmetrical at base than in Bolitogyrus cornutus, with shallower emargination at apex (Fig. 24H); female tergite X strongly reduced, ‘anchor-shaped’, with slender base and broadly rounded apex, without accessory sclerite but basal margin of laterotergal sclerites fused across base of tergite X (Fig. 27F); female laterotergal sclerites expanded at base, fused together at middle and entirely covering most of tergite X (Fig. 27F).

Figure 31A. Known only from the type locality in Darién province, Panama.