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Russian Entomol. J. 22(2): 131133

ї RUSSIAN ENTOMOLOGICAL JOURNAL, 2013

A new species of the genus Ocypus Leach, 1819 (Coleoptera: Staphylinidae: Staphylininae) from the south of Russia Новый вид рода Ocypus Leach, 1819 (Coleoptera: Staphylinidae: Staphylininae) с юга России E.A. Khachikov Э.А. Хачиков
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Rostov branch of the Russian Entomological Society. Alexandrovsky spusk str., 59, Rostov-on-Don 344030, Russia. E-mail: e_hachikov@mail.ru Ростовское отделение Русского Энтомологического общества. Александровский спуск, д.59, Ростов-на-Дону 344030, Россия.

KEY WORDS. Staphylinidae,Staphylinini, Ocypus ponomarevorum, new species. КЛЮЧЕВЫЕ СЛОВА. Staphylinidae,Staphylinini, Ocypus ponomarevorum, новый вид. ABSTRACT. A new species, Ocypus ponomarevorum sp.n., similar to the Ocypus similis group of species of Coiffait [1974] is described from the Rostov Region of Russia. РЕЗЮМЕ. Новый вид, Ocypus ponomarevorum sp.n., принадлежащий к группе видов Ocypus similis [Coiffait, 1974] описан из Ростовской области России. Specimens were mounted on a cardboard plate with water-soluble glue. Male genitalia were placed in a micro container filled with glycerin and mounted under the respective specimens. Female genitalia were mounted on the transparent plastic plate in transparent lacquer soluble in ethyl acetate, and also mounted on the same pin under the respective female. Nomenclature and description of genital structures were given as in Khachikov and Shavrin [2010]. Abbreviations: bititillator bt; lateral chamber chl; medio-ventral chamber chmv; monotitillator mt; phallomer distal phd; phallomer medial phm; phallomer proximal php; proctovaginus prv; titillatorbrush tb; vaginolamina vl; ventral chamber chv; collection of the Zoological Institute RAS (Russia, St. Petersburg) ZISP; collection of E. Khachikov (Russia, Rostov-on-Don) cKh. Ocypus ponomarevorum Khachikov, sp.n. Figs 15
TYPE MATERIAL. Holotype, , Russia, Rostov region, village Razdorskaya, 1726.04.2010, leg. Ponomarev A.V. Paratype: 1 , Russia, Rostov region, village Razdorskaya, 26.052.06.2010, leg. Ponomarev A.V. 1 , Russia, Rostov region, village Razdorskaya, 3.042.05.2008, leg. Ponomarev A.V. Deposition of the type specimens: holotype ZISP; paratypes 1 , 1 cKh. COMPARATIVE MATERIAL. Ocypus hochhuthi Eppelsheim, 1878. Georgia: , Banis-hevi, dist. Gori. 16.05.1929. leg. Kirsheblatt J. (ZISP); , Banis-heavy, with the Gori. 1.08.1928. leg. Unksov (ZISP); , Tsihisdzhevari, 10.08.1909 (ZISP). Ocypus cerceticus Coiffait, 1964. Russia. Krasnodar province, 1 , mountain Shchetka, 8.05.2011, leg. Kasatkin D; Adygea, 1 Lagonaki plateau, 8.10.1992, leg. Khachikov E. (cKh). Ocypus nabozhenkoi Khaschikov, 2005: Holotype, . Georgia, Adjara, upper Kitrishi river, Kitrishsky reserv., 23.07.2001, leg. Nabozhenko M.V. (ZISP). Paratype, , with the same label (ZISP).

DESCRIPTION. Body 14.1 mm in length. Body dark, almost black, shiny. Elytra brown, their apex lighter. Mandibles and labrum dark brown, the rest of mouthparts and antennae yellowish brown. Head weakly transverse and slightly narrowed basally, its hind angles rounded. Temples up to 1.5 times as long as maximum diameter of eyes. Eyes of medium size. Punctures of head moderately dense, with interspaces ranging from 1 to 1.5 times of diameter of a puncture. Impunctate middle line of pronotum weakly pronounced. Distinct microsculpture and pubescence absent. Antennomeres: basal elongated; the rest, except the four preapical ones, almost quadratic, the tenth transverse. Antennomeres 711 of the right antenna and the last segment of the right hind tarsus of the holotype are broken off (absent). Pronotum distinctly longer than wide, its front angles distinct, but hind angles widely rounded. Punctation of pronotum similar to that of head. Elytra on their external length longer than wide, at suture shorter than wide. Surface of elytra slightly wavy longitudinally, with irregular punctures confluent into longitudinal grooves apically. Microsculpture absent. Scutellum large, in dense punctures. Wings present, but rudimentary. Abdomen dark brown, with lighter apex, almost parallelsided, narrowed posteriad. Punctation moderately dense, arranged in transverse rows, interspaces equal 2 to 4 puncture diameters. Legs yellowish brown, anterior tarsi widened. Genitalia. Paramere forms widened lobe apically. Median lobe dorsal-ventrally bended. Endophallus divided into


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E.A. Khachikov

4 2 bt

mt

tb

chl chmv

vl chv

5

prv

3

1

Figs 15. Ocypus ponomarevorum sp.n.: 1 habitus; 2 male genitals; 3 endophallus; 4 paramera; 5 structure of genitals of females; 14 holotype, male; 5 paratype, female. Рис. 15. Ocypus ponomarevorum sp.n.: 1 габитус; 2 гениталии самца; 3 эндофаллус; 4 парамера; 5 структуры гениталий самки; 14 голотип, самец; 5 паратип, самка.


A new species of the genus Ocypus from the south of Russia
three phallomers: proximal (php), medial (phm) and distal. Basal phallomer ventrally has two large asymmetric ventral chambers covered with spines; laterally two mediumsized lateral chambers. Medial phallomer includes dorsally titillator-brush; ventrally one large medio-ventral chamber covered with flat spines. Distal phallomer apically includes agonoporial triad. Monotitillator transverse, with apical projection. Sclerites of bititillator parallel but not fused, widely divergent in the proximal direction and curved in the medial part. Female genitalia. Vaginolamina semi-oval. Proktovaginus weakly sclerotized, transverse, distally rounded, proximally covered with microtrichia, apically with flat spines. Spermatheca membranous, long. Gland of spermatheca of medium size. DIAGNOSIS. The new species is the most similar to Ocypus hochhuthi Eppelsheim, 1878 and O. nabozhenkoi Khachikov, 2005. It can be distinguished from both these species by the more slender body especially head and punctuation that is uniform and denser on the head and pronotum, but sparser on the abdomen and elytra. Also, contrary to the above mentioned species, O. ponomarevorum sp.n. has almost not expressed median line on pronotum. In addition, the new species differs from similar species in structure of genitalia, specifically in the form of parameres [Coiffait, 1974; Solodovnikov, 2000; Khachikov, 2005]. The new species and O. nabozhenkoi have similar morphology and very similar endophallus and its individual structures [Khachikov, 2005]. Both species have triangular monotitillator and close topology and form of the chambers.. In addition, the new species seems close to O. syriacus Baudi, 1848. Both these species share parameres widened distally and moderately dense punctation of head and pronotum

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[Coiffait, 1974]. Furthermore, O. ponomarevorum sp.n. is probably closely related to O. bernhaueri (J.Mьller, 1925).However, since the male of O. bernhaueri is not known, it is difficult to assess that at the moment. Despite the fact that all of these mentioned species (except O. nabozhenkoi) were placed in the O. similis species group by Coiffait [1974], the new species is definitely not close to O. nitens (Schrank, 1781) (= O. similis) because the latter differsvery significantly in the morphology of endophallus. ACKNOWLEDGEMENTS. The author thanks A.V. and L.K. Ponomarevs for the given material, and also A. Solodovnikov for some help with the manuscript.

References
Coiffait H. 1974. Colйoptиres Staphylinidae de la rйgion palйarсtique occidentale II. Sous Famille Staphylinidae. Tribus Philonthini et Staphylinini // Nouvelle Revue dEntomologie. Toulouse. Suppl. Vol.4. P.1593. Khachikov E.A. 2005. Internal structure of genitals of some species of genus Ocypus Leach, 1819 and Tasgius Stephens, 1829 (Coleoptera: Staphylinidae) with the description of new taxa from the genus Ocypus // Caucasian entomol. Bull. Vol.1. No.1. P.1932. Khachikov E.A., Shavrin A.V. 2010. Genital structures of some East Palaearctic species of the subtribe Staphylinina Latreille, 1802 (Coleoptera, Staphylinidae) // Euroasian Entomol. J. Vol.9. No.4. P.631640. Solodovnikov A.Yu. 2000. New and little-known species of the genus Ocypus Leach in the fauna of the Caucasus (Coleоptera, Staphylinidae, Staphylininae) // Zoosyst. Rossica. Vol.8. P.313 328.