3.2.4.7. Omalium rivulare (PaykUll, 1789)

Staphylinus rivularis Paykull, 1789: 65 .

Staphylinus cursor O. Müller, 1776: 97 .

Omalium incisum Gravenhorst, 1806: 209 .

Anthobium piceum Stephens, 1834: 341 .

Omalium foraminosum Scriba, 1867a: 378 .

Omalium porosum Scriba, 1867b: 72 .

Omalium nitidicolle Poppius, 1904: 108 .

Omalium obscuricorne Poppius, 1904: 110 .

For other references see Herman (2001a).

Material examined. KHANTY-MANSI AUTONOMOUS REGION: 1 ♂: Surgutskiy District, Yuganskiy Nature Reserve, Basin of Ay-Magromsy River, “Medvezhiy Ugol” cordon. In geophilous and epigenous gill fungi (+12°C). 16.09.2002. A.B. Ryvkin leg. (ZMM); TOMSK AREA: 1 ♂, 2 ♀♀: Tomsk, Tom` River. 15.09.2011. M.I. Kukshinova leg. (cSh); NOVOSIBIRSK AREA: 4 ♂♂, 3 ♀♀: Novosibirsk, Akademgorodok-Klyuchi. Aspen forest, carrion, traps. 12– 14.09.2008. V.K. Zinchenko leg. (cSh); 8 ♂♂, 6 ♀♀: same data. Mixed forest, carrion, traps. 21– 27.09.2008. (cSh); 3 ♂♂, 1 ♀: same data, 27– 31.08.2008. (cSh); 2 ♂♂, 1 ♀: same data, 03– 05.10.2008. (cSh); 1 ♂: same data, environs of Akademgorodok. Carrion traps. 28.09– 11.10.2008. V.K. Zinchenko leg. (cSh).

Remarks. Omalium rivulare is a widely distributed species in the Holarctic region (Schülke & Smetana 2015). It was recorded from Sverdlovsk Area (Belskaya & Kolesnikova 2011; Ermakov et al. 2017), and Tyumen Area (Bukhkalo et al. 2012). It also was recorded from Krasnoyarsk Territory (Shavrin 2010), but was misidentified and belongs to O. caesum . Records of the species from Yakutia (Averenskiy 1999, 2003) and Maritime Province (Kryzhanovskiy et al. 1973) require confirmation. It is also known from the northern regions of Russia west of Ural Mts. (e.g. Kolesnikova 2000).

It is here recorded from Khanty-Mansi Autonomous region, Tomsk and Novosibirsk areas from the first time.