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Int. J. Dipterol. Res. 21(3)

¿ 2010

ISSN 1021-1020 An International Journal of Dipterological Research

New contribution to the Turkish Dolichopodidae (Diptera) fauna and taxonomy

I

GOR

Y A . GRICHANOV & A

LPER

TONGUÇ

Grichanov, I. Ya. & A. Tonguç. 2010. New contribution to the Turkish Dolichopodidae (Diptera) fauna and taxonomy. Int. J. Dipterol. Res. , 21 (3): 225-229. The following five species are recorded for the first time from Turkey: Dolichopus subpennatus d'Assis Fonseca, 1976; Sybistroma transcaucasica (Stackelberg, 1941); Tachytrechus genualis Loew, 1857; Diaphorus hoffmannseggi Meigen, 1830 and Diaphorus winthemi Meigen, 1824. Hercostomus varicoloris Becker, 1917 and Hercostomus caucasicus Stackelberg, 1933 are transferred to the genus Poecilobothrus Mik, 1878 (comb. nov.). A new subspecies, Poecilobothrus varicoloris flavifemoratus subsp. nov. collected in Bolu region is described. As a result, the dolichopodid list of Turkey has increased to 117 species. Igor Grichanov, All-Russian Institute of Plant Protection, Podbelskogo 3, St.Petersburg, Pushkin, 196608 Russia; E-mail: "Igor" Grichanov@mail.ru Alper Tonguç, M u ð l a University, Science and Art Faculty, Department of Biology, 48170 Kötekli, M u ð l a , Turkey; E-mail: alpertonguc@mu.edu.tr Key words . Diptera, Dolichopodidae, Palaearctic Region, Turkey, new records, Poecilobothrus, new combination, new subspecies.

Introduction Almost all long-legged flies are polyphagous predators feeding on various fine invertebrates including some pests. The most recent papers on Dolichopodidae fauna of Turkey have increased the country list to 112 known species (Naglis, 2009; Popescu-Mirceni and Pârvu, 2009; Tonguç et. al., 2009, 2010; Grichanov and Tonguç, 2010). Material and Methods Specimens examined in this study are deposited in the following collections: the Zoo-

logical Museum of Moscow State University, Russia [ZMU] and Mu ðl a University, Science and Art Faculty, Department of Biology, Zoology Laboratory, Mu ð l a , Turkey [MUZL]. Specimens were collected in aquatic and semiaquatic habitats in 2009 and 2010 in the Turkish provinces Artvin, Bolu, Bursa, Sakarya and Zonguldak. Adults were collected with an entomological hand net (40 cm diameter), Malaise trap and aspirator. They were preserved in 75% alcohol or in insect envelops in the field. Distribution part of the list includes countries of the Caucasus and East Mediterranean Region and notes on the general distribution for each species after Yang et al. (2006) and Grichanov (2007) mainly.
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1

4

5

6 2

7 3
Figs 1--7. Poecilobothrus Mik. 1, P. v. varicoloris (Becker), habitus; 2-7, P. v. flavifemoratus subsp. nov.: 2, habitus; 3, hind tarsus; 4, male head; 5, hypopygium; 6-7, wing: 6, male, 7, female.

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Results Subfamily: DOLICHOPODINAE Genus: Dolichopus Latreille, 1796 Dolichopus subpennatus d'Assis Fonseca, 1976 Distribution . Turkey, Romania, Russia (Adygea); Europe (Yang et al., 2006; Grichanov, 2007).
Material examine.: 1 $, TURKEY, Bolu, Kartalkaya (40? 64 ' N / 31? 76 ' E), 1480 m, 1618.06.2010, leg. N. Vikhrev [ZMU].

Poecilobothrus varicoloris flavifemoratus subsp. nov.
(Figs 2-7)
Types . Holotype, $ , labeled: " TURKEY , Bolu, Kibricik, (40? 50' N / 3 1 o 89' E), 1800 m, 01.09. 2009, leg. N. Vikhrev [ZMU]. Paratypes. (same collection data as the holotype): 9 $ , 2 "! ... [ZMU, ZIN].

Genus: Poecilobothrus Mik, 1878 Poecilobothrus varicoloris (Becker, 1917) [Hercostomus], comb. nov.
(Fig. 1)

Distribution . Turkey (Artvin), Abkhazia, Armenia, Georgia, S Russia (Adygea, Alania, Kabardino-Balkaria, Karachai-Cherkessia, Stavropol', Krasnodar) (Yang et al., 2006; Grichanov, 2007). Remark . Authors of this paper have reexamined material of this species collected in five different Caucasian regions and in the adjacent Artvin Province of Turkey [VIZR and MUZL]. All specimens correspond to original description (Becker, 1917) and to re-description (Stackelberg, 1933-1934) of Hercostomus varicoloris , but also to the generic concept of Poecilobothrus (see Brooks, 2005). The latter genus can be distinguished by the possession of a distinct dark metallic spot above the notopleuron, and one strong posterior to posteroventral preapical seta on the mid femur (Brooks, 2005). Males are further distinguished by their distinctive postgonite and short conical hypandrium, which is fused to the epandrium laterally (Brooks, 2005). P. varicoloris is most close to Poecilobothrus caucasicus (Stackelberg, 1933) [Hercostomus ], comb. nov. (see Grichanov, 2007), well differing from all other Poecilobothrus species in flattened hind tibia and tarsus bearing black dorsal and ventral plumage, and in cuneate wing without anal lobe. P. varicoloris is often collected together with P. caucasicus , which is also known from the Artvin Province.

Diagnosis. Male: Length (mm): body 5.1- 6.2, wing 5.7-7.1, wing width 1.7-2.1, antenna 1.1, hypopygium 1.9-2.0. Similar to P. v. varicoloris in all respects (see original description by Becker, 1917, and re-description by Stackelberg, 1934) except as noted below. Body and wing are somewhat longer in new subspecies than those in P. v. varicoloris (body 4.0-4.9, wing 4.8-6.5; op.cit. and VIZR material); therefore, major setae and bristles are somewhat stronger and longer in P. v. flavifemoratus . Fore coxa yellow except black base (anterior view), brownish yellow in distal half and blackish in basal half (lateral view); fore and mid femur almost entirely yellow, blackish at extreme apex dorsally; hind femur orange-yellow, black at apex (behind level of anterior subapical seta); fore tibia orange brownish in basal half. Wing with vein R 2+3 running very close to costa and distinctly bending anteriorly at apex; 1 st radial cell in distal half 1-1.5 times wider than costa; R4+5 and M1+2 strongly bending anteriorly in distal part of wing; ratio of part of costa between R 2+3 and R 4+5 to this between R 4+5 and M1+2, 52 : 19. Ratio of dm-cu to distal part of CuA1, 46 : 43. Female. Length (mm): body 4.9-5.3, wing 5.0-5.4, wing width 1.6. Similar to male except lacking male secondary sexual characters and to female of P. v. varicoloris in all respects except as noted below. Body and wing are somewhat longer in new subspecies than those in P. v. varicoloris (body 3.8-4.6, wing 4.4- 5.3). Fore coxa yellow except extreme base and fore tibia yellow except apex. Remark . Leg coloration and wing venation are rather constant in all series of the two subspecies, having only fine degree of variability. Males of P. v. varicoloris have black femora and fore tibiae; rarely they are brown

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Material examined . 1 $ , Zonguldak, Alapli env. (41? 14 ' N / 31? 36' E), 19-20.06.2010, leg. N. Vikhrev [ZMU].

(apparently immature specimens); R2+3, R4+5 and M 1+2 have rather gentle convexion in distal part; 1st radial cell in distal half 2-3 times wider than costa. Females of P. v. varicoloris usually have mainly dark fore coxa and tibia, blackish fore femur dorsally at apex; sometimes they are lighter; mid femur entirely yellow, and hind femur yellow except dark apex; i.e. similar in colour to P. v. flavifemoratus; both subspecies with hind tibia and tarsus not flattened, with only simple setulae; R 2+3 is practically straight in P. v. varicoloris , and R 4+5 and M1+2 have very gentle convexion in distal part. Despite differences mentioned above, hypopygium morphology is practically identical in all specimens of the two subspecies, with similar shape and setation of cercus, surstylus, epandrial lobe and hypandrium. Etymology . Lat. flavus ; femur : `with yellow femora'. Genus: Sybistroma Meigen, 1824 Sybistroma transcaucasica (Stackelberg, 1941) Distribution . Turkey, Abkhazia, S Russia (Adygea, Krasnodar) (Grichanov, 2007).
Material examined . 1 $ , Bursa, Mustafakemalpaþa, Muradiyesarnýç Village ( 3 9 ? 55' N / 29? 23' E), 248 m, 24.06.2009, leg. H. Koç, Y. Molla and A. L. Yýldýrým [MUZL].

Diaphorus pilitibius Negrobov et Maslova, 2005 Distribution . Turkey, S Russia (Krasnodar) (Grichanov, 2007).
Material examined . 1 $ , Sakarya, Karasu (41? 03 ' N / 30? 79' E), 15.06.2010, leg. N. Vikhrev [ZMU].

Discussion A total of 112 dolichopodids have been recorded by previous studies. The present paper adds 5 new species, which increases the national list of Turkey to 117 species discovered mainly during the last five years. A new subspecies, Poecilobothrus varicoloris flavifemoratus , is described in this paper from western Turkey, whereas the nominotypical subspecies is known from Caucasian countries and from Artvin Province of northeastern Turkey. The geographical variations of the two subspecies are not clear, as many northern and central provinces of the country are still undercollected. Acknowledgements We would like to thank Dr N. Vikhrev and Dr A. Ozerov (ZMU) for the loan of specimens. Alper Tonguç would like to thank The Scientific and Technical Council of Turkey (TUBITAK, Research Projects No TBAG107T678) for the financial support of field work in scope of the Project Entitled "Investigation on Biodiversity of Tipuloidea (Diptera) Fauna of Marmara Region". References
Grichanov, I. Ya. 2007. A checklist and keys to Dolichopodidae (Diptera) of the Caucasus and East Mediterranean. St. Petersburg: VIZR RAAS (Plant Protection News Suppl.). 1-160.

Genus: Tachytrechus Haliday, 1851 Tachytrechus genualis Loew, 1857 Distribution . Turkey, Armenia, Bulgaria, Romania, S Russia (Kabardino-Balkaria, Krasnodar); Europe, Japan, Taiwan (Yang et al., 2006 ; Grichanov, 2007).
Material examined . 1 $ , Sakarya, Karasu (41? 03 ' N / 30? 79' E), 15.06.2010, leg. N. Vikhrev; 1 B&, Zonguldak, Alapli env. (41? 14' N / 31? 3 6 ' E), 19-20.06.2010, leg. N. Vikhrev [ZMU].

Subfamily: DIAPHORINAE Genus: Diaphorus Meigen, 1824 Diaphorus hoffmannseggi Meigen, 1830 Distribution . Turkey, Israel; Romania; S Russia (Krasnodar); Europe (Yang et al., 2006; Grichanov, 2007).

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I.Ya. Grichanov & al.: New contribution to the Turkish Dolichopodidae Grichanov, I. & Tonguç, A. 2010. New Contribution to the Turkish Dolichopodidae (Diptera) Fauna. Acta Zoologica Bulgarica, 62 (3) [accepted]. Naglis, S. 2009. New records of Sympycninae (Diptera, Dolichopodidae) from Turkey, with the description of a new species of Teuchophorus. Mitteilungen der Schweizerischen Entomologischen Gesellschaft , 82 : 173-180. Popescu-Mirceni, M. & Pârvu, C. 2009. Distributional data on some East-Mediterranean Brachycera (Diptera) [Results of the ,,Euphrates" Expedition -- 2008, in Turkey and Syria]. Travaux du Museum d'Historie Naturelle "Grigore Antipa" , 52 : 429-436.

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Tonguç, A., Grichanov, I. Ya. & Kechev, M. 2009. New Records of the Family Dolichopodidae (Diptera) from Turkey. Acta Zoologica Bulgarica , 61 (2): 213-216. Tonguç, A., Grichanov, I. Ya., Koç, H., Özgül, O. & Barlas, M. 2010. Contributions to the Dolichopodidae (Diptera) Fauna of Turkey. Journal of Entomological Research Society, 12(2): 103-107. Yang, D., Zhu, Y., Wang, M. & Zhang, L. 2006. World Catalog of Dolichopodidae (Insecta: Diptera) . Beijing, China Agricultural University Press. 704 p. Received 09.IX.2010

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