Hexarhopalus (Leprocaulus) difformis (Pic, 1922)

Jiang, Ri-Xin, Bai, Xing-Long, Ren, Guo-Dong, Yang, Hui-Yu & Wang, Shuo, 2020, A taxonomic revision of the genus Hexarhopalus (Coleoptera, Tenebrionidae Cnodalonini) from China, Zootaxa 4821 (2), pp. 277-304 : 294-295

Hexarhopalus (Leprocaulus) difformis (Pic, 1922)

( Figs 16–17 , 21H , 22 I–J)

Hexarhopalus (Leprocaulus) difformis (Pic, 1922) . Type locality: Vietnam, Hoang Lien Son , Sa pa .

Leprocaulus (Pseudocoelophus) difformis Pic, 1922a: 504 .

Strongylium (Pseudocaelophus) difforme Pic, 1922b: 28 .

Hexarhopalus vietnamicus Kaszab, 1980: 200 (synonymized by Bečvář & Purchart, 2008).

Leprocaulus (Pseudocoelophus) difformis ( Pic, 1922a) : Kaszab, 1983: 178.

Hexarhopalus (Leprocaulus) difformis (Pic, 1922) : Bečvář & Purchart, 2008: 52.

Material examined (3 spec., 2 ♂♂, 1 ♀). CHINA: Yunnan: 1 ♂, 1 ♀ , labeled: ‘China, Yunnan, Dai Autonomous Prefecture of Xishuangbanna (ƀẅđȃėKÞảnj), Mengla County ( Mśss ), Yiwu Township (BḰø), Manla Village ( Ễśń ), Xujialiangzi (ËẎỸŦ), 22°10’45.91” N, 101°32’25.50” E, 2017.II.1, 1500m, Xu hao & Qiu Jian-Yue leg.’ ( MHBU); 1 ♂ , labeled: ‘China, Yunnan, Lincang City (ûṧḿ), Gengma County (Ḅĥss), Banwang ( ŪĒ), Nangunhe N. R. (ĦŵñÞǿùếṽ), 23°38’49.85” N, 99°20’41.06” E, 2017.I.27, 1500m, Xu hao & Qiu Jian-Yue leg.’ ( MYNU) .

Supplementary description. Male ( Fig. 16A , 17 A–G). Aedeagus ( Figs 17 C–E), nearly symmetrical, abdominal ventrite VIII ( Fig. 17G ) deeply split medially at posterior margin and with long dense hair at hind margin. Spiculum gastrale ( Fig. 17F ) not symmetrical, short, with large apical lobes.

Female ( Fig. 16B , 17H – I ) similar to males. Ventrite VIII ( Fig. 17H ) slightly split medially at posterior margin and covered with long dense hairs. spiculum ( Fig. 17H ) tortuous near straight, apex rounded and slightly dilated. Apex of ovipositor ( Fig. 1.7I ) with one long hair and two pairs of much shorter hairs.

Distribution. Laos, Thailand, Vietnam, China: Yunan.

Comments. Hexarhopalus (Leprocaulus) difformis was originally described from Laos, Thailand, Vietnam, and is herein newly recorded from Yunnan, China.

Figures

FIGURE 1. Habitus of Hexarhopalus (H) liuyixiaoi sp. nov. A. Male; B. Female.

FIGURE 16. Habitus of Hexarhopalus (L.) difformis. A. Male; B. Female.

FIGURE 17. Diagnostic features of Hexarhopalus (L.) difformis. (A–G. Male; H–I. Female). A. Head and pronotum, in dorsal view; B. Antenna; C. Aedeagus, ventral view; D. Same, lateral view; E. Same, dorsal view; F. Spiculum gastrale; G. Abdominal ventrite VIII of male; H. Ventrite VIII of female and spiculum; I. Ovipositor.

FIGURE 21. Lateral groove of pronotum of Chinese Hexarhopalus species (not include Hexarhopalus (L.) xui). A. Hexarhopalus (H.) attenuatus; B. Hexarhopalus (H.) liuyixiaoi sp. nov.; C. H. (H.) sculptilis; D. Hexarhopalus (H.) mangshanicus; E. H. (H.) sculpticollis; F. H. (L.) qiujianyueae sp. nov.; G. Hexarhopalus (L.) bisinuatus; H. Hexarhopalus (L.) difformis; I. Hexarhopalus (L.) qiului sp. nov.; J. Hexarhopalus (L.) xuhaoi sp. nov.

FIGURE 22. Habitat of Chinese Hexarhopalus species. A. Mr. Yi-Xiao Liu working at night in the type locality of Hexarhopalus (H.) liuyixiaoi sp. nov.: Fushou Mountain (Pingjiang County, Hunan Province); B. General environment of Fushou Mountain; C–D. Living specimen of Hexarhopalus (H.) liuyixiaoi sp. nov. climbing on a tree at night; E. Type locality of Hexarhopalus (L.) qiujianyueae sp. nov.: Dawei Mountain (Pingbian Miao Autonomous County, Yunnan Province); F. Living specimen of Hexarhopalus (H.) sculptilis in a rotten wood; G. Microbiotop of Hexarhopalus (H.) sculptilis; H. Living specimen of Hexarhopalus (H.) mangshanicus, at night; I. Microbiotop of Hexarhopalus (L.) difformis; J. Living specimen of Hexarhopalus (H.) difformis; K. Living specimen of Hexarhopalus (L.) qiului sp. nov. (Figs 22E–G, 22I–J taken by Dr. Hao Xu; Fig. 22H taken by Mr. Xiang Zhu; Fig. 22K taken by Dr. Lu Qiu).