Hexarhopalus (Leprocaulus) qiujianyueae Jiang, Bai, Ren & Wang 2020, sp. nov.

Hexarhopalus (Leprocaulus) qiujianyueae Jiang, Bai, Ren & Wang sp. nov.

(Figs 10–11, 21F, 22E)

Type material (31 spec. 14 ♂♂, 17 ♀♀). Holotype: CHINA: ♂, labeled ‘ China: Yunnan, Pingbian Miao Au-tonomous County (qṅḕKÞảss), Dawei Mountain (ĘOEƜ), H: 2093m, 2018.V.26, light trap, Lu Qiu leg.’ (MHBU). Paratypes: CHINA: 13 ♂♂, 17 ♀♀. 2 ♂♂, same collected data with holotype, except ‘ 2016.V.16–18 ’ (MYNU); 3 ♀♀, same collected data with holotype, except ‘ 2015.V.20 ’ (MYNU); 11 ♂♂, 14 ♀♀, labeled ‘ China: Yunnan, Pingbian Miao Autonomous County (qṅḕKÞảss), Daweishan N. R. (ĘOEƜÞǿùếṽ), Dajian Mountain (ĘẊƜ), 103°41’54.40” E, 22°54’14.24” N, H: 2100m, 25-27.V.2018., Xu Hao & Qiu Jian-Yue leg.’ (1♂, 1 ♀, QUST; 2 ♂♂, 2 ♀♀, MHBU; 7 ♂♂, 10 ♀♀, MYNU; 1♂, 1♀, LPCB).

Description. Male (Figs 10A, 11A – H). Body elongate, black, convex and dull-shiny.

Head (Fig. 11A) distinctly transverse, dorsal surface finely covered with small punctures and short hair. Labrum narrower than clypeus, covered with bristles of medium length in apical portion. Antennal tubercles weak, antenna (Fig. 11B) shorter than the combined length of head and pronotum, clubs loosely formed by apical four antenno-meres. Antennomere I slightly expanded; II shortest, longer than wide; III longest, about 2.5 times as long as II, IV-VII similar, shorter than III, apical four dark brown, expanded, XI with rounded apex.

Pronotum (Fig. 11A) about as long as wide, widest at basal 1/3, dorsal surface finely covered with small punctures and short hair. Groove of pronotum much deep at base and lacking at anterior part, the back angle oblique indentation slightly short, deep, curved forward and upward, median line shallow.

Elytra about twice as long as wide, widest at apical 1/3, shoulders strong, Disc with regular rows of orderly foveolate punctures, scutellum transverse, near triangular. Hind wings fully developed.

Femora obvious expended at middle, all tibiae covered with brown setae at apex, protibiae (Fig. 11C) straight and with a small expanded projection at middle, mesotibiae slightly curved, metatibiae straight.

Aedeagus (Figs 11 D–F), near symmetrical, abdominal ventrite VIII (Fig. 11H) deeply split medially at posterior margin and with long dense hair at hind margin. Spiculum gastrale (Fig. 11G) dissymmetrical, short, with large apical lobes.

Measurements. AnL 3.61–4.10 mm, BL 13.32–14.35 mm, HL 1.58–1.65 mm, HW 2.14–2.41 mm, PL 2.77–3.33 mm, PW 2.98–3.35 mm, EL 8.90–9.41 mm, EW 4.50–5.18 mm, AL 1.89 mm.

Female (Figs 10B, 11I – J). Similar to males, protibiae lack modification. Ventrite VIII (Fig. 11I) split medially at posterior margin and covered with long dense hairs. Spiculum (Fig. 11I) near straight, apex rounded and slightly dilated. Apex of ovipositor (Fig. 11J) with one long hair and two much shorter hairs.

Measurements. AnL 3.10–4.09 mm, BL 12.28–14.36 mm, HL 1.34–1.63 mm, HW 1.97–2.42 mm, PL 2.60–3.30 mm, PW 2.72–3.33 mm, EL 8.34–9.43 mm, EW 4.30–5.20 mm.

Comparative Notes. The new species is similar to Hexarhopalus (Leprocaulus) bisinuatus Ren & Xu, 2011 (Figs 18–19) in its general appearance, but can be separated from the latter by: 1) sparse foveolate punctures on the elytra; 2) less and short setae on the apex of protibia; 3) inner projection situated at the middle of protibia; 4) lateral groove of pronotum much shallow and not obvious at anterior part. Furthermore, the localities of the two species are distant (over 500 km).

Distribution. China: Yunnan.

Biology. The adult was collected by light trap.

Etymology. This species is named in honor of our friend Dr. Jian-Yue Qiu, the collector of the holotype.