Leistus (Evanoleistus) nanshanicus sp. n. from the Qilian Shan Mountain Range (China, prov. Gansu) is described. Its comparision with L. farkaci Sciaky is given.Описан Leistus (Evanoleistus) nanshanicus sp. n. с хребта Циляньшань (Китай, провинция Ганьсу). Приведено его сравнение с L. farkaci Sciak

Belousov, I.A.

Kabak, I.I.

Vestnik Zoologii

Наукова електронна бібліотека періодичних видань НАН України (Vernadsky National Library of Ukraine)

Vestnik zoologii, 34(6): 105—108, 2000 © 2000 I. A. Belousov, I. I. Kabak ÓÄÊ 595.762(510) A NEW SPECIES OF THE GENUS LEISTUS  (COLEOPTERA, CARABIDAE) FROM CHINA I. A. Belousov1, I. I. Kabak2 1All-Russian Institute of Plant Protection, ul. Podbelskogo, 3, St.-Petersburg – Pushkin, 189620 Russia 2Institute of Zoology, Akademgorodok, Almaty, 480060 Kazakhstan Àññåðted 4 May 2000 A New Species of the Genus Leistus (Coleoptera, Carabidae) from China. Belousov I. A., Kabak I. I. – Leistus (Evanoleistus) nanshanicus sp. n. from the Qilian Shan Mountain Range (China, prov. Gansu) is described. Its comparision with L. farkaci Sciaky is given. Key  wo rd s : Coleoptera, Carabidae, Leistus, taxonomy, new species, Asia, China. Íîâûé âèä ðîäà Leistus (Coleoptera, Carabidae) èç Êèòàÿ. Áåëîóñîâ È. À., Êàáàê È. È. – Îïèñàí Leistus (Evanoleistus) nanshanicus sp. n.  ñ õðåáòà Öèëÿíüøàíü (Êèòàé, ïðîâèíöèÿ Ãàíüñó). Ïðèâåäåíî åãî ñðàâ-íåíèå ñ L. farkaci Sciaky. Êëþ÷åâûå  ñëîâà :  Coleoptera, Carabidae, Leistus, òàêñîíîìèÿ, íîâûé âèä, Àçèÿ, Êèòàé. This publication contains the description of Leistus nanshanicus sp. n. collected by the authors in the Qilian Shan Mountain Range (China, Gansu). The holotype and some paratypes of the new species are deposited in the collection of the Zoological Institute of Russian Academy of Sciences (St.-Petersburg, ZISP), other paratypes – in the collection of Moscow Pedagogical University (MPU, Moscow) and in the collections of the authors (cIK, cIB, St-Petersburg), J. Farkač (cJF, Praha), A. Koval (cAK, St.-Petersburg), A. Putchkov (cAP, Kyiv). The following measurements were taken: body length from the anterior margin of labrum to the elytral apex; head width across eyes; width of the forehead between internal margins of eyes; pronotal length along its median line; elytral length from the scutellum to the apex of elytra; width of both pronotum and elytra at their broadest point; pronotal base at the hind angles; elytral base at the humeral angles. The number of genitalia studied is given in parenthesis after the number of available specimens. Leistus (Evanoleistus) nanshanicus Belousov & Kabak, sp. n. (figs 1–3) Ma t e r i a l .  22 specimens measured. Holotype: { (ZISP), China, Gansu, Qilian Shan Mt. Range, S of Zhan-gye town, 20 km SSW of Huazhaizi village, right source of river (Tayogou), 2900—3400 m, 25.07.1999 (Belousov, Kabak leg.). Paratypes: 25 (13) {, 18 } (ZISP, MPU, cAK, cAP, cIK, cIB, cJF), collected together with holo-type. – 3 (1) {, 3 }, same locality, 3400—3450 m, 24.07.1999 (Belousov, Kabak leg.). – 3 (1) {, 5 }, China, Gansu, Qilian Shan Mt. Range, S of Zhangye town, Tayogou River, SSW of Huazhaizi village, h~3400 m, 24.07.1999 (Belousov, Kabak leg.).  Descr ip t ion . Medium-sized species, habitus narrow and elongate, strongly constricted at pronotal base (fig. 1), body length 7.58—8.70 mm (males smaller, on the average, 7.96 mm vs. 8.36 mm in females). Apterous. Appendages long and slender. Reddish-brown, head slightly darkened except for clypeus and sometimes frontal spots. Lateral margins and median line of pronotum, scutellum, elytral base, suture and margins of elytra lightened. Ap-pendages, mandibles and labrum yellowish-brown, only femora and middle portions of an-tennomeres 1—4 barely obscured. Sometimes, colour of upper-side dark brown. Head (fig. 2) large, only 1.04—1.10 (1.07) times narrower than pronotum and 1.36—1.42 (1.39) times as wide as forehead between eyes, strongly constricted at neck, which is 1.47—1.63 times (in males, on the average, 1.58 vs. 1.53 in females) narrower than width of head across eyes. Disk of head convex, smooth medially and rugulouse peripherally. Neck and frontal furrows rugulouse and sometimes sparsely and superficially punctured. Medial im-pression on forehead, normally made up of 4 parts. A fine carinula behind supraorbital seta. I. A. Belousov, I. I. Kabak 106 Eyes protruding, 0.98—1.12 (1.06) times longer than antennomere 3. Frontal foveae rather superficial. Exterior margins of mandibles strongly explanate at base. La-brum with 4 well-developed setae, sometimes two supplementary small median setae present. 7—8 setae on arcuate gular carina. Mentum with 4—5 setae, submen-tum with two setae on each side. Antennae long, 1.12—1.26 times (on the average, 1.21 in males and 1.15 in females) longer than elytral length. 5-th antennomere 1.33—1.53 (1.46) times longer than 3-rd antennomere. Pronotum (fig. 2) small-sized, cordiform, broadest before midlength, 1.17—1.28 (1.21) times as wide as long, its maximal width 1.67—1.78 (1.73) times wider than the width of base. Lateral margins gradually rounded anteriorly, well sinuate before hind angles. The latter rectangular or slightly acutangular, pointed at apices, projecting backward. Anterior margin 1.10—1.20 (1.16) times as wide as base of pronotum, angu-larly or evenly protruding in the middle, its border distinct throughout or interrupted medi-ally; anterior angles small. Prono-tal base slightly concave or almost straight. Marginal bead rather narrow. Basal foveae small and deep. Basal transverse impression deep but not sharply outlined. Apical transverse impression of pronotum relatively deep. Both apical and basal surfaces of pronotum punctate and rugu-louse. Disk subconvex, superficially transversely rugulose. Median line not reaching the ante-rior margin of pronotum. Elytra elongate, broadest behind midlength, 1.53—1.66 (1.61) times longer than wide, 1.62—1.77 times (on the average, 1.69 in males and 1.73 in females) as wide as head. Elytra 1.48—1.65 (1.59) times wider and 3.01—3.26 times (on the average, 3.07 in males and 3.16 in females) longer than pronotum. Shoulders almost completely effaced, humeral denticles ob-tusangular, distance between them 2.19—2.50 (2.34) times less than elytral width at broadest point. Basal border oblique, weakly arched. Marginal bead narrowly explanate. Elytral striae very deep, roughly punctate, striae 3 and 4 connecting to each other far from elytral apex. Intervals convex. Microsculpture composed of small isodiametric meshes, more superficial on elytra, and well-developed on head and pronotum.  Fig. 1. Leistus nanshanicus, habitus. Ðèñ. 1. Leistus nanshanicus, îáùèé âèä. A new species of the genus Leistus (Coleoptera, Carabidae) … 107Prosternum with large and sparse punctures. Abdominal segments 1—2 superficially punctured on sides, the others smooth, each bearing two setae. Anal segment with two setae in male and four in female. Anterior tarsi of male slightly dilated, posterior ones 1.55—1.84 times shorter than elytra (on the average, 1.62 in males and 1.73 in females). Aedeagus (fig. 3) arched, its apical portion almost straight, evenly narrowed towards apex in dorsal view. Lamella provided with two carinae on dorsal surface. Di f fe rent ia l  d iagnos i s .  The new species is most similar to L. farkaci Sciaky (Sci-aky, 1994; Farkač, 1995). Both species have the elongate body with small pronotum, the narrow marginal bead of the latter, the more or less strongly oblique humeri and the similar aedeagus. Additionally it is worth noting that these species inhabit the neighbouring territo-ries. Nevertheless L. nanshanicus is readily distinguished by lighter colour, more elongate body shape (ratio of elytral length to elytral width 1.53—1.66 vs. 1.48—1.54 in L. farkaci, that of pronotal width to pronotal length is 1.17—1.28 vs. 1.25—1.30 correspondingly), more oblique shoulders; more slender appendages; larger head, which is only 1.04—1.10 times nar-rower than pronotum and 1.62—1.77 times narrower than elytra against 1.19—1.25 and 1.79—1.88 in its counterpart. Additionally, L. nanshanicus differs by the following qualitative char-acters: more strongly explanate mandibles and deeply sinuate lateral margins of pronotum before rectangular hind angles as compared with slightly sinuate lateral margins and obtusan-gular hind angles in L. farkaci; the striae 3,4 connecting to each other far from the elytral Figs 2—3. Leistus nanshanicus. 2 – fore-body. 3 – median lobe of aedeagus: a – lateral view, b – dorsal view. Ðèñ. 2—3. Leistus nanshanicus. 2 – ãîëîâà è ïåðåäíåñïèíêà. 3 – ìåäèàëüíàÿ äîëÿ ýäåàãóñà: a – âèä ñáîêó, b –âèä ñâåðõó. I. A. Belousov, I. I. Kabak 108 apex while the stria 3 either connects with stria 2 or disappears near the apex in L. farkaci. The aedeagus of L. nanshanicus is distinct in straight lamella which is barely thickened just before apex in lateral view and gradually narrowed towards apex in dorsal view as compared with lamella of L. farkaci bent downwards in lateral view and parallel-sided and constricted at base in dorsal view. Distr ibut ion . The new species is only known from the northern slope of the Qilian Shan Mountain Range (China: Gansu). For the moment, this locality seems to be the northernmost finding for the members of the subgenus Evanoleistus Jedlička, 1967. Habi ta t . The species was found in the wide belt of atitudes from 2900 to 3450 m a. s. l., occurring mainly in wet alpine meadows. Nevertheless few specimens were col-lected in the coniferous forest. Acknowledgements We are very grateful to Dr. J. Farkač (Praha) for his kind cooperation and to Dr. B. Březina (Praha) for pro-viding us with specimens of L. farkaci Sciaky. We express our thanks to Dr. A. Putchkov (Kyiv) for his help in pub-lishing the present paper. Sciaky R. Seven new species of Leistus from China (Coleoptera: Carabidae: Nebriinae) // Acta Soc. Zool. Bo-hem. – 1993 (1994). – 57. – P. 203—210. Farkač J. Sixteen new species of Leistus from Asia (Coleoptera: Carabidae: Nebriini) // Acta Soc. Zool. Bohem. – 1995. – 59. – P. 145—163. 

A New Species of the Genus Leistus (Coleoptera, Carabidae) from China

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A New Species of the Genus Leistus (Coleoptera, Carabidae) from China

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