Genus Barycnemis Förster, 1869

Barycnemis is a predominantly Holarctic genus with 14 species in the Nearctic region, including Mexico (Khalaim 2002b; Horstmann 2010), and 26 species in the Palaearctic region (Horstmann 1981; Khalaim 2004, 2015b, 2015c; Balueva et al. 2013a). Beyond the Holarctic region, the genus is known from Central America (Khalaim & Broad 2012), Australia (Khalaim 2015d) and tropical Asia (Khalaim 2017c).

Five species of Barycnemis occur in Japan (Khalaim 2015c; Khalaim & Tereshkin 2019): B. naganoensis Khalaim, B. sugonyaevi Khalaim, B. tobiasi Khalaim and two species listed below.

Very little is known about host range of Barycnemis . In Europe, the genus has been recorded from the coleopteran genera Byrrhus L. ( Byrrhidae) and Bledius Leach (Staphylinidae) (Horstmann 1981; Wyatt & Foster 1989), and in the Nearctic region one species was reared from a Pissodes species (Curculionidae) (Horstmann 2010).