Prismognathus sukkitorum Nagai 2005

Prismognathus sukkitorum Nagai, 2005

(Figs. 67, 97, 129, 155, 191, 215, 235)

Prismognathus sukkitorum Nagai, 2005: 37 [type locality: Chudo Razi, northeastern Kachin, northern Myanmar], Figs. 21–23, males and female; Fujita 2010: 168, plate 101, partim [Figs. 505 (1–5), males from northern Myanmar].

Material examined. CHINA: Yunnan: 1 3 (IEAS), Baoshan City, Tengchong County, Gaoligongshan Nature Reserve, Da-hao-ping station, on the old road from Tengchong to Baoshan, 17.IX.1991, Z.-Y. Liu, T.-Q. Wang & H.-S. Yin leg.; 1 Ƥ (IEAS), same data; 1 3 (CLYB), Nujiang Autonomous Prefecture, Gongshan County, VIII.2011, Y.- B. L i leg..

Identification. This species was originally described from northeastern Myanmar and compared with P. kanghianus. It differs from P. kanghianus in males “by having the body black, almost without luster, and the angulated frontal corners of pronotum” (Nagai 2005). Fujita (2010) illustrated some reddish brown specimens alongside the black specimens from the same area; therefore the black color of the body is not a constant character. The male specimen from western Yunnan examined by us matches the original description of P. s u kk i to r um except for the redder color of the body. On the underside of the male specimen, each of the abdominal ventrites bears a transversal band of yellow setae near the posterior margin; this character is not found in all other species. The female was illustrated in the original description and very briefly described. The following peculiar characters have been noticed by us: 1) anterior margin of the pronotum markedly wider than head, with anterolateral corners more or less produced; 2) lateral angels of the pronotum a little protruding. The female from western Yunnan examined by us matches the above-mentioned characters. However, the female illustrated by Fujita (2010: plate 101, Fig. 505-6) does not match these characters and probably does not belong to P. sukkitorum.

Taxonomic notes. P. sukkitorum is sympatric with P. kanghianus kittii in northeastern Myanmar.

Distribution. Western Yunnan (Tengchong); northeastern Myanmar.