Microserangium shennongensis Wang & Ren

Wang, Xingmin, Ślipinski, Adam & Ren, Shunxiang, 2013, The genus Microserangium Miyatake (Coleoptera, Coccinellidae) from China, ZooKeys 359, pp. 13-33 : 23

Microserangium shennongensis Wang & Ren sp. n. Figures 15, 45-52, 93

Diagnosis.

This species is similar to Microserangium glossoides , from which it differs in having a relatively large outer arm of the penis capsule, small parameres, and narrow and curved penis guide (Figs 46-49). In Microserangium glossoides , the penis capsule is inconspicuous, the parameres are distinctly longer than in Microserangium shennongensis , and the penis guide is tongue-shaped (Figs 38-41).

Description.

TL: 1.25-1.35mm, TW: 1.09-1.15mm, TH: 0.66-0.69mm, TL/TW: 1.15-1.17; PL/PW: 0.42-0.44; EL/EW: 0.94-1.11; HW/TW: 0.42; PW/TW: 0.73.

Body shiny and glabrous (Fig. 15). Dorsum uniformly black. Head reddish brown. Underside dark brown, legs brown, tibiae and tarsi yellow.

Head transverse and ventrally flattened; frontal punctures large, conspicuous and densely distributed, 0.5-1.0 diameter apart, associated with long sparsely distributed setae; eyes round, large and coarsely faceted, widest interocular distance 0.50 × width of head. Antennal club oval and flat, apex truncated (Fig. 51).

Pronotum short and strongly transverse, anterior corners inconspicuous and blunt. Pronotal disk with densely distributed large and fine punctures both associated with long sparsely distributed setae. Elytra smooth and shiny, with sparse row of long 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 densely distributed, 1.5-2.0 diameters apart. Meso- and metatibiae weakly angulate externally beyond middle; tarsus with 3 tarsomeres (Fig. 52).

Male genitalia. Penis strongly curved along entire length, apex narrowed and acicular, penis capsule with short but distinct outer arm and small inner one (Figs 46-47). Tegmen rather slender and strongly asymmetrical. Penis guide in lateral view slender, outer margin arcuate, apex pointed (Fig. 48), in ventral view slender and moderately curved, apex pointed (Fig. 49). Parameres inconspicuous, small.

Types.

Holotype ♂: China, Hunan: Shennong Valley National Forest Park, Yanling, 26°29.95'N, 114°0.18.98'E, ca 800m, 9.x.2010, Wang XM leg. Paratypes (4): Hunan: 1♂3♀♀, same data as the holotype.

Distribution.

China (Hunan).

Etymology.

The specific epithet refers to the Shennong Valley National Forest Park, the type locality of this ladybird.