New data on the fauna of casebearer moths (Lepidoptera, Coleophoridae) of Omsk Province, Russia

The information on the casebearer moth family Coleophoridae from Omsk Province was summarized based on the determination of materials collected by the second author in 2014-2020. There is a list of 31 species, among them, 21 new regional records from the territory of Omsk Province are given. Two species (Casignetella occatella (Staudinger, 1880) and Ecebalia proterella (Wikström et Tabell, 2016) are new to the Asian part of Russia. The total number of Coleophoridae from Omsk Province is increased to 55.


Introduction
With 499 species in Russia, the casebearer moths are among the most diverse families of Gelechioidea and Lepidoptera in general (Sinev, 2019). 194 species are recorded from West Siberian Plain (Anikin, 2019) based on published collection materials in faunistic and taxonomic papers (Tibatina, 1973(Tibatina, , 1976Falkovitsh et al., 1977;Anikin, 1999Anikin, , 2001aAnikin, , 2001bAnikin, , 2001cAnikin, , 2006Anikin, , 2008Anikin, , 2014Baldizzone et al., 2007;Budashkin et al, 2015 and others). This is the next contribution in series of papers devoted to studying the Coleophoridae from Omsk Province of Western Siberia. Earlier, 34 species were registered for this region by Knyazev (2012, 2016). As a result of our studying the material collected by S.A. Knyazev in 2014-2020, 21 additional species were found in Omsk Province, including Casignetella occatella (Staudinger, 1880) and Ecebalia proterella (Wikström et Tabell, 2016), that are new for the Asian part of Russia. The list of new and additional records of Coleophoridae is given below. A photograph of the male genitalia of the lectotype of C. occatella is provided.

Methods
The paper is based on material collected by the second author in various parts of the Omsk Province in 2014-2020, as well as on a limited material kindly provided by V.V. Rogalev, a colleague-entomologist from Omsk. The studied material is partly stored in the laboratory of insect taxonomy of the Zoological Institute of the Russian Academy of Sciences (St. Petersburg, Russia), in the Zoological Museum of the Saratov State University, and in the private collection of the second author.
Geographical coordinates of the collecting sites ( Fig. 1  Species firstly reported for the Omsk Oblast are marked by an asterisk; species new to the Asian part of Russia -by a double asterisk. The abbreviations of the names of the collectors are given by their initials: SK -S.A. Knyazev, VR -V.V. Rogalev.

Results
Below is a list of 31 species of Coleophoridae, made in accordance with the system of the Catalog of Lepidoptera of Russia (Anikin, 2019). The list includes 21 species recorded from the Omsk Province for the first time. We also provide additional locality records for eleven species that have been previously indicated from the studied territory.

Damophila trifolii Curtis, 1832
Material examined. 1♂, 18-19.07.2019, Cherlacksky district, 2 km N of Malyi Atmas village, Irtysh river (SK). This species was previously reported from Omsk Province Knyazev 2012, 2016).    (Wikström et Tabell, 2016). Of course, the continuation of new biotopes survey in entomological expeditions in this region of Western Siberia will allow to significantly expand the presented list in the future, which already for the West Siberian region has a fauna composition of about 200 species (Anikin 2019). According to the new studies, the number of known species of Coleophoridae in the fauna of the Omsk Province has reached 55. It is noteworthy that the "new" species are gradually closing the territory between Eastern Siberia with the Far East and the European part, thereby removing a large gap in the distribution of these species in the European and Asian parts of the continent.