Hexarhopalus (Leprocaulus) xuhaoi Jiang, Bai, Ren & Wang 2020, sp. nov.
Creators: name: Jiang, Ri-Xin
name: Bai, Xing-Long
name: Ren, Guo-Dong
name: Yang, Hui-Yu
name: Wang, Shuo
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Tenebrionidae
Hexarhopalus
Hexarhopalus xuhaoi

description: Hexarhopalus (Leprocaulus) xuhaoi Jiang, Bai, Ren & Wang sp. nov.
(Figs 14–15, 21J)
Type material (2 spec. 1 ♂, 1 ♀). Holotype: CHINA: ♂, labeled ‘ China: Xizang, Chiayu County (ḔṚss), Zhuwagen Town (n'ãĕẘ), Longgu Village (żåń), 2016.VII.06, 2600m, Xu Hao & Qiu Jian-Yue leg.’ (MHBU). Paratype: China: 1 ♀, same collected data with holotype (MHBU).
Description. Male (Figs 14A, 15A – G). Body elongate, black, convex and dull-shiny.
Head (Fig. 15A) slightly wider than long, dorsal surface crude, finely covered with short hair, punctures small. Labrum narrower than clypeus, covered with bristles of medium length in apical portion. Antennal tubercles weak, antenna (Fig. 15B) shorter than the combined length of head and pronotum, clubs loosely formed by apical four antennomeres. Antennomere I slightly expanded; II shortest, longer than wide; III longest, about twice as long as II, IV-VII similar, shorter than III, apical four dark brown, expanded, XI with rounded apex.
Pronotum (Fig. 15A) about as long as wide, widest near middle, dorsal surface crude, with shallow and mussy wrinkles, and covered with small and sparse punctures and much short hairs. Groove of pronotum deep at base, the back angle oblique indentation slightly short, deep, curved forward and upward, much wide, shallow and not obvious at lateral part, median line not obvious.
Elytra about 2.5 times as long as wide, widest at apical 1/3, shoulders strong, Disc with regular rows of orderly longilineal punctures, and covered with irregular rows of small tubercles. Scutellum transverse, near triangular. Hind wings fully developed.
Femora slightly expanded, all tibiae covered with brown setae at apex, protibiae slightly curved and without modification, mesotibiae slightly curved, metatibiae straight.
Aedeagus (Figs 15 C–E), near symmetrical, abdominal ventrite VIII (Fig. 15G) deeply split medially at posterior margin and with long dense hair at hind margin. Spiculum gastrale (Fig. 15F) dissymmetrical, short, with large apical lobes.
Measurements. AnL 3.23 mm, BL 12.01 mm, HL 1.38 mm, HW 2.06 mm, PL 2.48 mm, PW 2.79 mm, EL 8.15 mm, EW 4.11 mm, AL 1.53 mm.
Female (Figs 14B, 15H – I). Similar to males. Ventrite VIII (Fig. 15H) not split medially at posterior margin and covered with long dense hairs. Spiculum (Fig. 15I) strong and straight, apex rounded. Apex of ovipositor (Fig. 15I) with one long hair and two much shorter hairs.
Measurements. AnL 3.45 mm, BL 13.14 mm, HL 1.48 mm, HW 2.28 mm, PL 2.78 mm, PW 3.08 mm, EL 8.91 mm, EW 4.50 mm.
Comparative Notes. Hexarhopalus (Leprocaulus) xuhaoi sp. nov. can be easily separated from its congeners by the following characters: shallow wrinkles on pronotum; groove of pronotum vanishing anteriorly and laterally; and femora expanded weakly. The new species is similar to Hexarhopalus (Leprocaulus) xui Ren & Xu, 2011 (Fig. 20C) in its general appearance, but can be separated by: 1) having the whole body dark black (vs. brown); 2) shallow wrinkles on pronotum; 3) smaller tubercles on elytra; 4) broader ventrite VIII of females; 5) spiculum narrow at base; 6) elytral punctures longilineal and orderly.
Distribution. China: Xizang.
Biology. Unknown.
Etymology. This species is named in honor of our friend Dr. Hao Xu, who collected the type series.
description: Published as part of 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, pp. 277-304 in Zootaxa 4821 (2) on pages 292-294, DOI: 10.11646/zootaxa.4821.2.3, http://zenodo.org/record/4440916