Themus (Telephorops) hainanus Yang & Zong & Yang & Liu 2019, sp. nov.
Creators: name: Yang, Yuxia
name: Zong, Le
name: Yang, Xingke
name: Liu, Haoyu
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cantharidae
Themus
Themus hainanus

description: Themus (Telephorops) hainanus sp. nov.
Figs 2B, 3E, 4D, 5 E–H
Type material. Holotype ♂ (IZAS), China, Hainan, Jianfengling, Heiling, 1984. VII.26, leg. Y. Liang. Paratypes: China, Hainan: 3♀ (IZAS), same data as holotype, leg. J. G. Long; 1♀ (IZAS), same data as holotype, leg. L. Z. Hua; 1♀ (IZAS), Jianfengling, Erfeng, 1983. VII.25, leg. L. Z. Hua; 1♀ (IZAS), same locality and collector, 1984. VII.23; 3♂ (one in IZAS, two in SYSU) Jianfengling, Zhufeng, 1983. VII.27, leg. T. Y. Luo; 1♀ (IZAS), same locality, 1984. VII.21, leg. Y. Liang; 3♀ (one in IZAS, two in SYSU), Jianfengling, Tianchi, 1984. VII.21, leg. L. Z. Hua; 1♀ (IZAS), same locality, 1984. VII.23, leg. Y. Liang; 1♀ (IZAS), same locality, 1983. VII.28, leg. T. Y. Luo; 1♂ (IZAS), Jianfengling, Wufenqu, 1984. VII.24, leg. Y. Liang; 1♀ (MHBU), Changjiang, Bawangling, 2006. VII.9, leg. J. L. Wang & C. Gao; 1♀ (MHBU), Wuzhishan, 2006. VII.24, leg. J. L. Wang & C. Gao.
Distribution. China (Hainan).
Description. Male (Fig. 2B). Body orange, head black at both sides of dorsum, mandibles dark brown at apex, antennae black at the apical part of the antennomeres X and the whole XI, tarsi, tibiae and apical part of femora black, elytra blue with strongly metallic shine. Body densely covered with a fine, short, semi-erect brown pubescence.
Head rounded, across eyes slightly narrower than anterior margin of pronotum, its surface slightly sparsely and finely punctate; eyes moderately protruding; antennae filiform and extending to elytral mid-length, antennomere II about twice as long as wide, antennomere III slightly longer than II, antennomere IV about one-third longer than III, antennomeres V–X gradually slenderer and shortened, antennomere XI slightly longer than X and pointed at apex, antennomeres VI–XI each with a smooth narrow oblong or short longitudinal impression along apical part of outer margin.
Pronotum transverse, about 1.3 times as wide as long, anterior margin weakly bisinuate, lateral margins subparallel, posterior margin arcuate and finely bordered, anterior and posterior angles almost rectangular, rounded at apex, disc distinctly convex postero-laterally, surface slightly sparsely and finely punctate.
Elytra about 3.5 times as long as pronotum, 2.3 times longer than humeral width, with lateral margins subparallel, very finely and sparsely punctate at basal parts, lustrous, rest roughly rugulose-lacunose.
Aedeagus (Figs 5 E–H): ventral processes of parameres gradually narrowing apically, rounded at apices, moderately bent towards each other; conjoint dorsal plate slightly shorter than ventral processes, widely and roundly emarginate in middle of apical margin, small and rightly emarginate at latero-apical angles, middle emargination with pair of small round lobes which are vertically bent ventrally, beside lobes with narrow transverse ridge on each side of inner surface; laterophyses conjoint, strongly thickened in middle of apical part, which is opposite to lobes of conjoint dorsal plate, with latero-apical angles strongly extended dorsally, moderately bifurcated and very acute at apex.
Female. Similar to males, but with eyes less protruding, head width across eyes distinctly narrower than anterior margin of the pronotum, antennae narrower and shorter, extending to basal third of elytra, antennomeres VI–XI without impressions, pronotum about 1.4 times as wide as long, disc less convex postero-laterally.
Abdominal sternite VIII (Fig. 3E) with a large and triangular protuberance on each side of posterior margin, protuberances sub-rounded at apex and moderately sclerotised on surface, space between protuberances widely triangular.
Internal genitalia (Fig. 4D): diverticulum situated at apex of vagina, global and rounded at apex; spermatheca slightly expanded apically and rounded at apex; accessory gland slightly longer than spermatheca.
Variability within the type series. Sometimes head, antennomeres X and/or femora uniformly orange, tibiae uniformly black violaceous.
Measurements. Body length: 12.0–15.0 mm (holotype: 13.3 mm); width: 3.5–4.5 mm (holotype: 4.2 mm).
Diagnosis. The newly described species is similar to T. (Telephorops) uniformis, but differs from the latter in the structures of the aedeagus and female abdominal sternite VIII. The differences are described in detail in the key.
Etymology. The species epithet is derived from the name of the type locality, i.e., the Hainan island, China.
description: Published as part of Yang, Yuxia, Zong, Le, Yang, Xingke & Liu, Haoyu, 2019, A taxonomic study on Themus (Telephorops) davidis species-group (Coleoptera, Cantharidae), with description of a new species from China, pp. 401-411 in Zootaxa 4612 (3) on pages 407-409, DOI: 10.11646/zootaxa.4612.3.6, http://zenodo.org/record/3235188