Heterocerus obsoletus Curtis, 1828

Material examined.

RUSSIA • 1 female; Republic of Khakassia, Abakan, Abakan River valley; 53°42'49.5"N, 91°30'19.6"E; 30 June 2018 • 1 female; same locality; 4-5 June 2019; 22:00-1:00 hours • 1 female; same locality; 7-8 July 2019; 21:00-3:00 hours.

Distribution.

It is known from Europe, Southwest (partly) and Iran, Central Asia (Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan), Mongolia, south of Western and Eastern Siberia (Zaitzev 1908; Charpentier 1979; Strien 1980; Mascagni 2003, 2006, 2016; Efimov and Litovkin 2015; Prokin et al. 2016; Litovkin and Sazhnev 2018; Prokin et al. 2020). The species is recorded for the Republic of Khakassia for the first time.