New records of Hydraenidae and Elmidae (Coleoptera) from Russia and adjacent countries

: New data on the distribution of 27 species of Hydraenidae and three species of Elmidae (Coleoptera) from Russia, Ukraine, Kazakhstan and Uzbekistan are provided. Ochthebius foveolatus Germar, 1824 and Stenelmis koreana Satô, 1978 are recorded from Russia for the first time. Other new records are: Ochthebius bernhardi Jäch et Delgado, 2008 (Ukraine), O. depressus Sahlberg, 1900 (Ural Mountains), O. erzerumi Kuwert, 1887 (European part of Russia and Ural Mountains), O. flavipes Dalla Torre, 1877 (Ural Mountains), O. jermakovi Orchymont, 1933 (Kazakhstan), and O. joosti Jäch, 1992 (Kazakhstan and Uzbekistan). A new record for the rarely collected Laeliaena sparsa Sahlberg, 1900 from Uzbekistan is also provided. For Ochthebius yoshitomii Jäch et Delgado, 2014 new records and information on the correct type locality, as well as detailed habitat information and photographs of its habitat on Kunashir Island are provided.


INTRODUCTION
The distribution of the Hydraenidae and Elmidae of Russia and other countries of the former Soviet Union is still poorly known.Many species are known only from the type locality or from very few localities.In this paper we present several new and other interesting records, trying to fill some gaps.
In the Catalogue of Palaearctic Coleoptera (Jäch, Skale 2015) several species of Hydraenidae were recorded from some of the countries of the former Soviet Union for the first time.Here we provide detailed locality data, on which these new records were based, using the same abbreviations for subdivisions of Russia as in the Catalogue, except for the Ural      (Prokin et al., 2013); Samara Oblast', Elkhovka District, near Proleyka, stream, 53°55'59"N, 50°14'30"E, 25 Jul 2005, leg.S. Litovkin, 1 ex.(SLC).

Family
ST should be added to the Catalogue of Palaearctic Coleoptera.

Laeliaena sparsa Sahlberg, 1900
Uzbekistan: 40º34'50.9''N,66º39'26.The correct type locality of this species is: 44°18'50''N, 145°58'56''E, sea shore, about 3.5 km SW of the mouth of Severjanka River, Kunashir Island, Kuril Islands, Russian Far East.In the original description, Krugly Cape, 44°00.28'N,145°39.38'E,was erroneously listed as type locality.Most of the specimens collected by K. Makarov and A. Zaitzev on Kunashir Island were found in filamentous algae in small coastal rock pools with numerous Culicidae larvae, flooded during high tide .A smaller number of specimens were collected in marine beach wrack near the mouth of Tyatina River and in lacustrine beach wrack with small pieces of driftwood at Lake Peschanoe.This species was recorded from Kunashir by Palatov (2014) under the name Z. gotoi (Nomura, 1959).
This species was recorded by Gusakov (2009) from Lazovsky Nature Reserve (Primorsky Kray) under the name Z. rivalis Nomura, 1963.http://rcin.org.plDISCUSSION For five species the records provided here significantly expand their known ranges.For Ochthebius foveolatus and O. jermakovi the most eastern, for Stenelmis koreana the most northern, for O. erzerumi the most northwestern and for O. joosti the most northeastern known localities are recorded.
However, the knowledge of the faunal composition of Hydraenidae and Elmidae in Russia and adjacent countries is still quite incomplete.During our studies we detected several undescribed species from Kazakhstan, Russian Caucasus and Abkhazia, which will be described soon.Obecnie fauna Rosji zawiera 66 gatunków Hydraenidae i 25 gatunków Elmidae, Ukrainyodpowiednio 40 i 15, Kazachstanu -25 i 4 a Uzbekistanu -13 i 3.