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 dactylicum Wang & Ren
sp. n.
Figures 20, 85-93
Diagnosis.
This species is similar to
Microserangium bacthaiensis
Hoang
, 1978 in morphological characters and male genitalia, but it can be distinguished by the different shape of the penis guide.
Description.
TL: 1.25-1.38mm, TW: 1.12-1.22mm, TH: 0.76-0.82mm, TL/TW: 1.12-1.14; PL/PW: 0.42-0.44; EL/EW: 0.94-0.95; HW/TW: 0.43; PW/TW: 0.76.
Body shiny and glabrous (Fig. 20). Dorsum uniformly black. Head brown, except frons yellowish brown. Underside dark brown, except prosternum brown. Legs yellowish brown, tibiae and tarsi yellow (Fig. 1).
Head transverse and ventrally flattened; frontal punctures inconspicuous and sparsely distributed, with long sparsely distributed setae (Fig. 2); eyes round, large and coarsely faceted, widest interocular distance 0.44
x
width of head (Fig. 2). Antennal club, oval and flat, apex angular (Fig. 5).
Pronotum short and strongly transverse, with anterior corners inconspicuous and blunt, mat and shagreened. Pronotal disk with densely distributed large and fine punctures both associated with long sparsely distributed setae, punctures inconspicuous. Elytra smooth and shiny, with several long setae along margins, punctures extremely fine and inconspicuous. Prosternum mat and impunctate. Mesoventrite transverse, very short, surface mat, weakly furrowed (Fig. 3). Metaventrite shiny and glabrous,
punctures
fine and sparsely distributed, 3.0-4.0 diameters apart. Meso- and metatibiae protuberant externally beyond middle; tarsus with 3 tarsomeres (Fig. 9).
Male genitalia. Penis strongly curved along entire length, apex strongly narrowed and acicular, penis capsule with large outer arm and inconspicuous inner one (Figs 86-87). Tegmen rather slender and strongly asymmetrical. Penis guide in lateral view slender, straight, apex pointed (Fig. 88), in ventral view flat and triangular, apex finger-shaped (Fig. 89). Parameres conspicuous, small (Fig. 88).
Figures 85-92.
Microserangium dactylicum
Wang & Ren, sp. n. 85 abdomen 86-89 male genitalia: 86 penis 87 apex of penis 88 tegmen, lateral view 89 tegmen, ventral view 90 mandible 91 antenna 92 hind leg. Scale bars: 0.1mm.
Types.
Holotype ♂: China, Yunnan: Dadugang, Puer,
22°22.35'N
,
100°56.68'E
, ca 950m, 26.iv.2008, Wang XM leg. Paratypes (20): Yunnan: 3♂♂2♀♀, same data to holotype; 2♂♂2♀♀, Tongbiguan, Nabang, Yingjiang,
24°37.86'N
,
97°34.75'E
, ca 1000m, 22-23.v.5.2008, Wang XM et al.leg.; 2♂♂5♀♀, Ganlongjing, Lianhuatan, Hekou,
22°56.59'N
,
103°31.68'E
, ca 710m, 20.v.2009, Wang XM et al. leg.; 1♀, Yaoqu, Mengla, 700m, 7.v.2009, Wang XM leg.; 1♂, Ainiguzhai, Jinghong,
21°54.67'N
,
101°10.31'E
, ca 660m, 11.v.2009, Wang XM leg.; 1♂, Lianhuatan, Hekou,
22°53.86'N
,
103°34.04'E
, ca 900m, 22.iv.2008, Wang XM leg.; 1♂, Daheishan, Jiangcheng,
22°33.62'N
,
101°50.16'E
, ca 1240m, 17.v.2009, Wang XM leg.
Distribution.
China (Yunnan).
Figure 93. Distribution map. ○
Microserangium erythrinum
Wang & Ren, sp. n. ●
Microserangium fuscum
Wang & Ren, sp. n. △
Microserangium glossoides
Wang & Ren, sp. n. ▲
Microserangium shennongensis
Wang & Ren, sp. n. ▼
Microserangium semilunatum
Wang & Ren, sp. n. ★
Microserangium hainanensis
Miyatake, 1961 ◇
Microserangium deltoides
Wang & Ren, sp. n. ◆
Microserangium okinawense
Miyatake, 1961 ■
Microserangium dactylicum
Wang & Ren, sp. n.
Etymology.
The specific epithet is formed from the Latin adjective dactylicus, referring to the finger-shaped apex of the penis guide.