Hexarhopalus (Hexarhopalus) liuyixiaoi Jiang, Bai, Ren & Wang, 2020
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publication ID |
https://doi.org/ 10.11646/zootaxa.4821.2.3 |
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publication LSID |
lsid:zoobank.org:pub:F0EBDD5F-5DBE-47A9-B946-881DF3A21BA1 |
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DOI |
https://doi.org/10.5281/zenodo.4441045 |
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persistent identifier |
https://treatment.plazi.org/id/03838217-0D40-7034-2FBD-4797FC1BFE12 |
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Plazi |
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scientific name |
Hexarhopalus (Hexarhopalus) liuyixiaoi Jiang, Bai, Ren & Wang |
| status |
sp. nov. |
Hexarhopalus (Hexarhopalus) liuyixiaoi Jiang, Bai, Ren & Wang sp. nov.
( Figs 1–2 View FIGURE 1 View FIGURE 2 , 21B View FIGURE 21 , 22 View FIGURE 22 A–D)
Type material (52 spec., 35 ♂♂, 17 ♀♀). Holotype: CHINA: ♂, labeled ‘ China: Hunan, Yueyang City, Pingjiang County ( Ṭűss ), Fushoushan (ŠƦƜẁdǔǡ), 28°28’N, 113°46’ E, 1079 m, 20.IX.2016, Jiang, Liu & Zhou leg.’ ( MHBU) GoogleMaps . Paratypes: CHINA: 34 ♂♂, 17 ♀♀. 14 ♂♂, 7 ♀♀, same label data as the holotype (1 ♂, 1 ♀ MYNU; 2 ♂♂, 2 ♀♀ QUST; 5 ♂♂, 2 ♀♀ SHNU; 6 ♂♂, 2 ♀♀ MHBU). 20 ♂♂, 10 ♀♀, labeled GoogleMaps ‘ China, Hubei, Xianning City (ŘŤḿ), Tongshan Hsien (áƜss), Jiugong Shan ( ŁŽƜ) , 29°23’32”N, 114°39’07”E, 1530 m, 30.VII-02.VIII.2016, Hu & Liu leg.’ (10 ♂♂, 5 ♀♀ SHNU; 8 ♂♂, 3 ♀♀ MHBU; 2 ♂♂, 2 ♀♀ LPCB) GoogleMaps .
Description. Male ( Figs 1A View FIGURE 1 , 2 View FIGURE 2 A–G). Body more slender than female, long oval, convex, black dull-shiny. Head ( Fig. 2A View FIGURE 2 ) transverse. Vertex finely covered with small punctures and short hairs. Genae and clypeus covered with denser punctures and hairs. Labrum narrower than clypeus, covered with bristles of medium length in apical portion. Antennal tubercles slightly prominent, antenna ( Fig. 2B View FIGURE 2 ) nearly as long as head and pronotum combined, club loosely formed by apical four antennomeres. Antennomere I slightly expanded; II shortest, about as long as wide; III longest, more than three times as II, IV-VII similar, shorter than II, apical four dark brown, longer than wide, XI with rounded apex.
Pronotum ( Fig. 2A View FIGURE 2 ) slightly wider than long, widest near middle, dorsal surface finely covered with small punctures and short hairs. Margins of pronotum with deep groove around, groove W-shaped on anterior part. Middle suture shallow, broadened at base, with pair of obvious depressions in middle area on both sides of the median line.
Elytra ovoid, nearly twice as long as wide, shoulders strongly narrowed, widest at apical 1/3, disc with regular rows of strongly foveolate punctures, scutellum transverse, near triangular. Hind wings completely reduced.
Femora obviously claviform at middle, all tibiae covered with brown setae at apex, protibiae and mesotibiae slightly curved, metatibiae straight.
Aedeagus ( Figs 2 View FIGURE 2 C–E) nearly symmetrical. Abdominal ventrite VIII ( Fig. 2F View FIGURE 2 ) deeply split medially at posterior margin and with long dense hairs. Spiculum gastrale ( Fig. 2G View FIGURE 2 ) dissymmetrical, short, with large apical lobes.
Measurements. AnL 6.28–6.58 mm, BL 15.94–16.24 mm, HL 2.51–2.55 mm, HW 2.92–3.19 mm, PL 3.98–4.19 mm, PW 4.05–4.30 mm, EL 9.45–10.50 mm, EW 5.23–6.25 mm, AL 2.17 mm.
Female ( Fig. 1B View FIGURE 1 ), similar to males, but usually larger. Ventrite VIII ( Fig. 2H View FIGURE 2 ) slightly split medially at posterior margin and covered with long dense hair. Spiculum ( Fig. 2H View FIGURE 2 ) tortuous at middle, apex rounded and slightly dilated. Apex of ovipositor ( Fig. 2I View FIGURE 2 ) with one long hair and two much shorter hairs.
Measurements. AnL 6.24–6.64 mm, BL 15.96–19.47 mm, HL 2.50–3.00 mm, HW 2.86–3.42 mm, PL 3.82–4.69 mm, PW 3.92–4.72 mm, EL 9.64–11.78 mm, EW 5.73–6.72 mm.
Comparative Notes. The new species can be easily differentiated from its congeners by the distinctive groove on the pronotum uninterrupted and W-shaped on the anterior part.
Distribution. China: Hunan, Hubei.
Biology. The adults of this new species can be collected on tree trunks at night ( Figs 22 View FIGURE 22 A–D).
Etymology. This species is named in honor of the first author’s colleague Mr. Yi-Xiao Liu, who collected the new species and worked with the first author together for three years.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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