New Descriptions and Notes on Chinese Stag-Beetles, with Discovery of the Second Species of Noseolucanus from SE Tibet
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Coleoptera 10 (2006): 11 - 34 ISSN 0945-1889 New descriptions and notes on Chinese stag-beetles, with discovery of the second species of Noseolucanus from SE Tibet. (Coleoptera, Lucanidae) by Hao HUANG Department of Biology, Life and Environment Science College, Shanghai Normal University, P.R.China private address: 503, East, # 1 Dong-Ting-Hu Road, Qingdao, 266071, P.R. China (Email: [email protected]) Abstract Three new stag-beetles are described from China, viz. Noseolucanus zhengi sp.n. from SE Tibet, Lucanus (Pseudolucanus) mingyiae sp.n. from NW Yunnan and Lucanus (Pseudolucanus) pani sp.n. from SE Tibet. The recently described genus Noseolucanus is proved to be a good genus independent from Lucanus, in light of the discovery of the second species within the genus including both sexes from the same habitat. Pseudolucanus denticulus is proved to be the senior synonym of Noseolucanus rugosus representing the ‡. Two stag-beetles are newly recorded for Chinese fauna, viz. Neolucanus brochieri from Dulong valley of W. Yunnan and Neolucanus angulatus from SE Tibet. The following new synonyms are given: Pseudolucanus bicolor syn. n. for Pseudolucanus imitator and Lucanus wuyishanensis syn. n. for Lucanus klapperichi. Keywords Noseolucanus, Lucanus, Tibet, China, checklist Introduction All measurements are in mm. The terminology A small collection of stag-beetles was brought back of genital organs mainly follows Holloway (1960, by my recent two expeditions to NW Yunnan and SE 1969). Tibet. Among which the second species of the genus Noseolucanus Araya & Tanaka, 1998 was discovered Abbreviations of Collections metinoned in the text and two new species of the subgenus Pseudolucanus BVQC Biological Laboratory of Qingdao Vocatio- Hope, 1845 of the genus Lucanus Scopoli, 1763 were nal and Technical College, Qingdao, China. found. In searching and studying the literatures on HCQC Hao HUANG collection, Qingdao, China Lucanus, two new synonyms are recognized. During my collecting of Chinese stag-beetles these years, some species of stag-beetles were Noseolucanus zhengi sp.n. collected as new records for Chinese fauna and formally recorded in this paper. Type data Holotype, ‡: 15km west of Hanmi, Motuo The following body measurements were taken County, Linzhi District, SE Tibet, China, 2400m, based on Araya (1992): August 2005. Leg. Hao HUANG. Captured in the 1) BL- body length without mandibles. field under daylight (BVQC). 2) BT- body thickness. Paratypes, 1 †: 14km west of Hanmi, 2400m, 3) HL- head length. leg. Hao HUANG (HCQC). 2 ‡‡: Hanmi, 2000m, 4) HW- head width at widest part including eyes. leg. Liang TANG, Da-Kang ZHOU (HCQC). 5) CHW- head width measured between tips of eye-canthis. Diagnosis 6) ML- mandible length in ventral view Only one valid species has been known in the 7) DBT- distance from mandibular base to recently described genus Noseolucanus Araya inner tooth & Tanaka, 1998. The new species can be easily 8) PL- pronotum length in middle distinguished from Noseolucanus denticulus (comb. 9) PW- pronotum width at widest part nov.) from W. Yunnan and N. Myanmar by the 10) EL- elytra length measured along the midline following combination of characters. 11) EW- elytra width at widest part Both sexes the eye-canthus is much thinner than 12) PTL- protibia length measured from base in N. denticulus, not triangular as in N. denticulus, of tibia to base of tarsi and is in a straight line with lateral margin of head 13) PTW- protibia width measured just at base behind eye, whereas in N. denticulus it is projected of apico-external fork out of the lateral margin of head, forming a hollow 11 COLEOPTERA 10 near each eye. The elytra are relatively longer than sculptured and punctured, with more sparse but in N. denticulus with a larger L/W (length/width) larger punctures near clypeus, but with posterior ratio. half of dorsal surface closely and transversely Only in the † the head is nearly as wide as rugose; with ventral surface punctured at lateral elytra, not narrower than elytra as in N. denticulus. areas but nearly smooth in central area. Pronotum is conspicuously wider than elytra. Eye. Small, with narrow canthus covering more The parameres is more pointed at apex than in than three third of its external margin. N. denticulus, middle lobe is apparently shorter Mandible. Short, strongly curved near base, than parameres, not longer than parameres as then gently and evenly curved toward tip, without in N. denticulus. (Aedeagus of N. denticulus was any trace of inner tooth, somewhat obtuse at tip; illustrated and described under L. rugosus in Araya, base of outer margin somewhat straight, base of 2004.) inner margin somewhat convex. Punctured on both dorsal and ventral surfaces, densely near base and Description † sparsely near tip. Color. Head above totally black, below black Clypeus. (=epistoma) Not projected, almost at lateral areas but reddish brown in the middle. hidden in dorsal view, only visible in dorso-anterior Eye brown in dry condition. Mandible black above view, very short and wide, nearly 1/3 times as wide and beneath, but appearing reddish brown at base. as head, flattened, with anterior margin rather Clypeus black. Maxillary palpus and labial palpus straight. brown. Mentum reddish brown but appearing black Mentum. Somewhat trapezoidal, with anterior at all edges. Pronotum black. Elytra dark reddish angles rounded and frontal margin a little depressed brown, darkened toward the lateral margins and in the middle. Punctured, more densely in the along the suture. Scutellum black. Prosternum middle. reddish brown at lateral sides and intercoxal Antennal club. Formed by antennomeres seven process, black at mid portion in front of procoxal to ten. Joints eight to ten, each with a broad, obtuse cavities. Mesosternum black at lateral sides but and pubescent lamella, brown in color; joint ten reddish brown at mid portion. Metasternum being the largest, a little longer and much broader mostly black, only appearing reddish brown in than joints eight and nine. Joint seven with a shorter, anterior portion near metocoxal cavities. Abdomen thinner and pointed lamella, black in color as joints with each sternite reddish brown but black near one to six. posterior margin. All femora mostly black, only Pronotum. Wider than elytra and nearly even in appearing reddish brown at inner edges. All tibiae width at the anterior half, then constricted abruptly and tarsi black. All coxae appearing reddish brown to the narrow posterior margin which is narrower at anterior edges, but black at the ventral surfaces. than the anterior margin of elytra; with posterior Shape. Body much depressed. angles well marked. Closely and transversely rugose Head. Nearly trapezoidal, narrowest at as in the posterior half of head. anterior margin and widest at posterior margin; Elytra. About 1.4 times as long as wide, nearly nearly as long as pronotum in the middle and as as wide as head. With shallow but distinct and wide as elytra; sunk perfectly by anterior margin irregular longitudinal striae. Elytra almost naked, of prothorax; with a feeble transverse furrow at without pubescence. Scutellum semi-circular, clad anterior third of head in dorsal view, from which with very minute and sparse pubescence and scales, the dorsal surface declined to clypeus; with dorsal hardly visible to the naked eyes. surface smoothly declined to clypeus and lateral Thorax. Intercoxal process of prosternum more margins, without carina or any traces of frontal elevated than in Pseudolucanus, dilated posteriorly. ridge, lateral ridges and anterior angles; with eye- Edges of pro-, meso and metocoxal cavities fringed canthus in a straight line with lateral margin behind with dense yellowish brown hairs. Mesosternum eye, not projected. Anterior and posterior margins clad with yellowish brown pubescence. Pro-, meso- of head and prothorax on both dorsal and ventral and metasternum punctured and microsculptured. surfaces fringed with dense hairs. Anterior portion Metasternum almost naked, without pubescence. of dorsal surface of head covered with very minute, Abdomen. With five visible sternites. Smooth, sparse and adpressed pubescence, nearly invisible not punctured. to the naked eyes but visible under microscope. Legs. with tibiae and tarsi relatively short. Anterior half of dorsal surface of head irregularly Protibia broader than in ‡; with its apico-external 12 Huang: ��������������������������������������������������New descriptions and notes on Chinese stag-beetles fork diverging deeply, the diverging position only Head. Nearly square, somewhat even in width a little exterior to base of tarsi; with three minute throughout; much smaller than in †; much shorter denticles on its external margin. Meso- and and narrower than pronotum; sunk perfectly metatibiae, each with three large apico-external by anterior margin of prothorax; with a feeble spines and two long inner spurs at terminal end, transverse furrow at anterior third of head in usually with one minute denticles (variable even in dorsal view; with dorsal surface smoothly declined the same †, sometimes up to three in number) on to clypeus and lateral margins, without carina; with external margin. All femora and tibiae clad with eye-canthus in a straight line with lateral margin sparse but conspicuous yellowish setae, mostly on behind eye, not projected. Head densely punctured, their inner edges. All femora and tibiae sparsely without dense and transverse wrinkles of †. punctured and microsculptured. Eye. Small, with narrow canthus covering more † genitalia. Gonosomite and aedeagus than three third of its external margin as in †. symmetrical as in Lucanus. Aedeagus rather Mandible. Shorter and thinner than in †, narrow at cephalic end, expanding considerably strongly curved near base, then gently and evenly and gradually to caudal end. Parameres slender curved toward tip, without any trace of inner tooth, near tip and pointed at tip. Middle lobe (= penis) a sharply pointed at tip, not obtuse as in †; base of little shorter than parameres, resting on distal end outer margin somewhat straight, base of inner of basal piece; a pair of slender struts (basal struts) margin somewhat convex.