Morphostenophanes birmanicus (Kaszab, 1980) ṀḦẎȐAEƤ

(Figs. 27 A–E; 31C, H, M, R; 32C, M–O; 33C, I)

Promorphostenophanes atavus birmanicus Kaszab, 1980: 219 (type locality: Shan states, Myammar); synonymized by Masumoto & Bečvář 2008: 210; Gao & Ren, 2009: 307 (in introduction).

Promorphostenophanes koyamai Masumoto, 1990: 228, fig. 1–3; Gao & Ren, 2009: 307 (in introduction); synonymized by Masumoto & Bečvář 2008: 210.

Morphostenophanes birmanicus (Kaszab, 1980): Masumoto & Bečvář 2008: 210, fig. 6; Gao & Ren, 2009: 308 (in introduc- tion).

Type material examined. Paratype of Promorphostenophanes koyamai labelled: THAILAND CHiang Mai Fang, 24.VIII.1989 leg. K. Masumoto [handwritten in white label] // Paratype Promorphostenophanes komiyai [sic!] MA- SUMOTO [handwritten in pink label with underlines] (male, HNHM, examined through five photographs taken by Tamás Németh, sent by Ottó Merkl, Fig. 27D) .

Additional material examined. CHINA: Yunnan: 1♂ (MYNU), Pu’er City, Lancang County, Zhutang Coun- try, Cizhuhe Village, Xiaolushan, 22°45’31.78” N, 99°42’23.72” E, 2180 m, 2017.i.30, Hao Xu & Jian-Yue Qiu ; 1♂ (MYNU, a sample of muscle tissue was preserved in 99.7% ethanol at –18 °C in CZDY), Pu’er City, Lancang County, Zhutang Country, Cizhuhe Village, Xiaolushan, 22°45’31.78” N, 99°42’23.72” E, 2180 m, larva 2017.i.30, adult emerged 2017.v, Hao Xu & Jian-Yue Qiu .

Comparative notes. M or phostenophanes birmanicus is closely related to M. lincangensis, M. bannaensis and M. vietnamicus, but can be easily distinguished from the related species by its unmodified pro- and mesotibiae, elytra with bronze metallic luster, elytral intervals evenly convex, elytral apex distinctly furcate.

Comments. This species was originally treated as a subspecies of Promorphostenophanes atavus by Kaszab (1980) with a very brief description. Later, it was elevated to species rank (Masumoto & Bečvář 2008). In 1990, Ma- sumoto described a new species from north Thailand named P. koyamai, which was later placed as a junior synonym of M. birmanicus by Masumoto & Bečvář (2008). Thanks to this little ‘episode’, M. birmanicus was redescribed in detail, and compared with M. atavus . In the present study, the author examined one male paratype of M. koyamai through photos taken from dorsal, lateral and ventral views. M. birmanicus is herewith recorded from China as a northernmost part of distribution. It was observed by the author that specimens from China and Thailand are almost identical.

Distribution. (Map 1) CHINA: Yunnan (new country record), MYANMAR, THAILAND.