New records of long-legged flies ( Diptera , Dolichopodidae ) from Novosibirsk Region of Russia

1 All-Russian Institute of Plant Protection, Podbelskogo 3, 196608, St.Petersburg-Pushkin, Russia. 2 Institute of Cytology & Genetics SB RAS, Acad. Lavrentyev ave. 10, Novosibirsk, 630090, Russia; Novosibirsk State University, Pirogova str. 2, Novosibirsk, 630090, Russia; 3 Baran Plant Protection Institute, Arak, Markazi Province, Iran E-mail: grichanov@mail.ru; kosterin@bionet.nsc.ru; aezam.ahmadi@gmail.com


Material and methods
In late July/early August 2017, about 600 specimens have been sampled by authors of this paper in the Novosibirsk Region by standard sweep net mostly.Some specimens (e.g., Medetera sp.) have been collected by use of a specimen jar.In addition, two small collections of dolichopodid flies sampled previously were found in the Zoological Institute of the Russian Academy of Sciences, St. Petersburg (ZIN), and the Zoological Museum of Moscow State University, Moscow, Russia (ZMMU).The general species distribution is given after Negrobov et al. (2013) and Grichanov (2017).Type localities are provided, countries are listed as grouped by large regions and then alphabetically.The collectors of all specimens ISSN 2412-1908; http://journal.asu.ru/index.php/biol/were the authors of this paper unless otherwise is noted.Photos of some habitats for species newly recorded from the Novosibirsk Region are provided.The specimens will be deposited in collections of ZIN and ZMMU.(Grichanov, 2006(Grichanov, , 2007))

Conclusion
O.P. Negrobov described two new Medetera species (M.sibirica and M. tarasovae), from the Toguchinskiy District of the Novosibirsk Region (Negrobov, Stackelberg, 1971-1977).Later, a lot of more new species were described from the Palaearctic Region including its eastern part (see review of Negrobov & Naglis (2016).Therefore, the 11 Medetera species names published by Negrobov (1971a, b) and repeated in a few ecological reports must be confirmed.Negrobov et al. (2013) mentioned 8 Medetera species for the Novosibirsk Region.In 1988, I. Grichanov participated in an expedition to the Krasnozyorskiy District situated in the South-West of the Region within the rather arid steppe/forest-steppe ecoregion.Eight dolichopodid species were found, including 5 species not recorded elsewhere in the Region (Grichanov, 1998(Grichanov, , 2012(Grichanov, , 2013, and this paper), and this paper).O. Kosterin collected several species in 2007-2009 in environs of the Akademgorodok, which were mainly sampled again during our recent survey (see above).
As a result of 2017 survey conducted in the Novosibirsk Region (environs of Novosibirsk; Cherepanovskiy, Iskitimskiy and Maslyaninskiy districts of the Region), a new material of Dolichopodidae was collected and identified.Two old collections of dolichopodid flies were also studied.In all, 44 species were identified, including only one species previously known from the Region.Almost all species were collected along banks of rivers, lakes and other water sources (see Figs. 1-8); nevertheless, Medetera jacula inhabited tree trunks and wooden poles.
Most of collections were made in the forest-steppe zone characterized by alternating meadows and meadow steppes and birch groves.At the same time, many species were found at the Akademgorodok standing in pine forests growing along the Ob River.Some specimens were collected at the foothills of Salairskiy Kryazh in the east of Novosibirsk Region, with mesic pine (at Yurmanka) or fir (at the Suenga River) forests; and some ones in the Krasnozyorskiy District lying in a transition zone from the southern forest-steppe to steppe.According to sampling data, five species (Campsicnemus lumbatus, C. scambus, Dolichopus linearis, D. plumipes and Hydrophorus brunnicosus) had the highest total abundance in 2017.
Most collected species are widespread across the Palaearctic Region.At present, the Novosibirsk Region is the easternmost area of distribution for the following species: Argyra ilonae, A. leucocephala, A. vestita, Dolichopus argyrotarsis, Lamprochromus semiflavus, Sciapus albifrons, S. longulus, Syntormon freymuthae, and Teuchophorus spinigerellus.The following species are not known in Europe: Dolichopus martynovi, Hercostomus udeorum, Medetera penicillata, M. sibirica, M. ISSN 2412-1908; http://journal.asu.ru/index.php/biol/subtristis and M. tarasovae.As a result of our investigation, the number of reported dolichopodid species from the Region includes now 61 species.We suggest that many more species will be revealed in this Region, if new districts and localities are investigated with the use of mass trapping methods.The total number of species can reach here to 200 dolichopodids.