New data on the genus Wiedemannia Zetterstedt (Diptera: Empididae) from the Caucasus with description of four new species Author Kustov, Semen Author Zherebilo, Danil text Zootaxa 2015 4032 4 351 369 journal article 10.11646/zootaxa.4032.4.1 1459e41f-b82d-4c88-be4d-ee86e329f9c7 1175-5326 243485 AFEF8567-B7C6-4F54-AC51-4C990389BF1D Wiedemannia ( Eucelidia ) zetterstedti (Fallén) ( Fig. 17 ) Empis zetterstedti Fallén, 1826 : 7 . Material examined . RUSSIA : Krasnodarskiy Territory, env. Oktyabrskiy (2), 29.v.2013 , S.Yu.Kustov, V.V. Gladun ( 2 ♂ , 8 ♀); env. Betta (1), 12.vi.2013 , V.V. Gladun ( 3 ♂ , 1 ♀); Nature Reserve “Kamyshanova Polyana” (5), 24.vi.2013 , S. Kustov ( 12 ♂ , 16 ♀). GEORGIA : Mingrelia, env. Doberazeni (28), 2.v.2014 , D. Zherebilo ( 25 ♂ , 20 ♀); Mingrelia, ridge Ofitsari (30), 4.v.2014 , D. Zherebilo ( 7 ♂ , 8 ♀); same data, 6.v.2014 , D. Zherebilo ( 31 ♂ , 18 ♀); env. Chinkadziebi (25), 6.iv.2015 , A.V. Zherebilo ( 2 ♂ ); env. Zedachukhuneti (27), 7.iv.2015 , A.V. Zherebilo ( 1 ♂ ); env. Chaisubani (26), 8.iv.2015 , A.V. Zherebilo ( 3 ♂ , 1 ♀); env. Zedakinchha (34), 9.iv.2015 , A.V. Zherebilo ( 1 ♂ , 1 ♀); env. Opitara (35), 10.iv.2015 , A.V. Zherebilo ( 3 ♂ , 2 ♀); env. Chkumi (36), 11.iv.2015 , A.V. Zherebilo ( 1 ♂ ); env. Namohvani (37), 15.iv.2015 , A.V. Zherebilo ( 2 ♂ , 1 ♀); env. Mukhuri (42), 17.iv.2015 , A.V. Zherebilo (1 ♀). ABKHAZIA : River Pshitsa (9), 11.vii.2013 , D. Zherebilo ( 3 ♂ , 2 ♀); env. Sukhum (18), 27.vi.2013 , D. Zherebilo ( 12 ♂ ). Diagnosis . Wiedemannia ( Eucelidia ) zetterstedti differs by the completely olive-brown scutum, minute acrostichals extending to second pair of dorsocentrals, 5 pairs of dorsocentrals without intermediate setae interspersed among primary setae, fore femur with 2–3 strong bristles at the tip, fore coxae with 1–3 erect projecting setae, longer than surrounding setae and longer than width of coxa; clasping cercus bilobed, mittenshaped. Distribution . PALAEARCTIC: Europe: Austria , Belgium , Bosnia and Herzegovina , Bulgaria , Croatia , Cyclades Is., Cyprus , Czech Republic , European Turkey , Finland , Germany , Greek mainland, Hungary , Italian mainland, Lithuania , Montenegro , North Aegean Is., Poland , Slovakia , Slovenia , Sweden , Switzerland , The Netherlands ; Caucasus: Russia (Krasnodarsky Territory), Georgia , Abkhazia; Asia: Turkey (Bolu: Yedigöller National Park). Remarks . This species was noted by Joost (1981) from the Sochi River ( Russia , Krasnodarskiy Territory), but in the Catalogue of Palaearctic Diptera it was mistakenly indicated from the Georgian territory. Therefore W . ( E .) zetterstedti is noted from the territories of Georgia and Abkhazia for the first time. This common species is known from mountain rivers of the Caucasus from elevations between 288–2100 m a.s.l. and is active from April to July.