The genus Microserangium Miyatake (Coleoptera, Coccinellidae) from China Author Wang, Xingmin Author Ślipinski, Adam Author Ren, Shunxiang text ZooKeys 2013 359 13 33 http://dx.doi.org/10.3897/zookeys.359.6057 journal article http://dx.doi.org/10.3897/zookeys.359.6057 1313-2970-359-13 18308C3D82C74B00B3F653BCD9188F7A 18308C3D82C74B00B3F653BCD9188F7A Microserangium deltoides Wang & Ren sp. n. Figures 18, 69-76, 93 Diagnosis. This species is similar to Microserangium okinawense , but can be separated from the latter by the inconspicuous inner arm of the penis capsule and triangular penis guide (Figs 70-73). In Microserangium okinawense , the inner arm of the penis capsule is small but distinct, and the penis guide is almost triangular with inner and outer margins arcuate (Figs 78-81). Figures 69-84. 69-76 Microserangium deltoides Wang & Ren, sp. n. 69 abdomen 70-73 male genitalia: 70 penis 71 apex of penis 72 tegmen, lateral view 73 tegmen, ventral view 74 mandible 75 antenna 76 hind leg 77-84 Microserangium okinawense Miyatake, 1961 77 abdomen 78-81 male genitalia: 78 penis 79 apex of penis 80 tegmen, lateral view 81 tegmen, ventral view 82 mandible 83 antenna 84 hind leg. Scale bars: 0.1mm. Description. TL: 1.19-1.35mm, TW: 1.02-1.15mm, TH: 0.66-0.76mm, TL/TW: 1.16-1.17; PL/PW: 0.38-0.44; EL/EW: 0.87-1.00; HW/TW: 0.43; PW/TW: 0.71. Body shiny and glabrous (Fig. 18). Dorsum uniformly black, anterior corner of pronotum yellowish brown. Head dark brown, except frons medium brown. Underside dark brown, legs yellowish brown, tibiae and tarsi yellow. Head transverse and ventrally flattened; frontal punctures fine and sparsely distributed, 1.0-2.0 diameters apart, with long sparsely distributed setae; eyes round, large and coarsely faceted, widest interocular distance 0.40 x width of head. Antennal club oval and flat, apex blunt (Fig. 75). Pronotum strongly transverse, anterior corners inconspicuous and blunt, mat and shagreened. Pronotal disk with densely distributed large and fine punctures both as sociated with long sparsely distributed setae, the finer punctures slightly deeper than the large ones. Elytra smooth and shiny, with long sparsely distributed setae along margins, punctures extremely fine and inconspicuous. Prosternum mat and impunctate. Mesoventrite transverse, very short, surface mat, weakly furrowed. Metaventrite shiny and glabrous, punctures fine and sparsely distributed, 1.5-3.0 diameters apart. Meso- and metatibiae distinctly angulate externally beyond middle, almost triangular; tarsus with 3 tarsomeres (Fig. 76). Male genitalia. Penis strongly curved along entire length, apex narrowed and pointed, penis capsule with large outer arm and inconspicuous inner one (Figs 70-71). Tegmen slender and asymmetrical. Penis guide in lateral view slender and straight, apex pointed (Fig. 72), in ventral view flat and triangular, apex pointed (Fig. 73). Parameres conspicuous, small (Fig. 72). Types. Holotype ♂: China, Guangxi: Pinglongshan, Fulong, Shangsi, 21°49.88'N , 107°56.79'E , ca 160m, 29.vii.2005, Wang XM leg. Paratypes (28): Guangxi: 1♂4♀♀, same data to holotype; 6♂♂3♀♀, Fulong, Shiwandashan, Shangsi, 21°49.88'N , 107°56.79'E , ca 160m, 7.xi.2004, Wang XM et al.leg.; 2♂♂11♀♀, Hongqilinchang, Shiwandashan, Shangsi, 21°52.79'N , 107°55.05'E , ca 900m, 7.xi.2004, Wang XM et al.leg.; Guizhou: 1♂, Xianheping, Anlong, 24°58.66'N , 105°36.45'E , ca 1500m, 12.ix.2007, Wang XM leg. Distribution. China (Guangxi, Guizhou). Etymology. The specific epithet is formed from the Latin adjective deltoides, referring to the triangular penis guide.