24. Hylastes opacus Erichson, 1836

Distribution. Great Britain, South and Central Europe, Baltic and Scandinavian countries, Ukraine Belarus, European Russia, Asian Turkey, Kazakhstan, Mongolia, Siberia, Russian Far East, North China, Korea, Japan, introduced to Nearctic Region (Knížek 2011b; Alonso-Zarazaga et al. 2017, 2023); reported by Arnoldi et al. (1955) from Caucasus and by Nikitsky & Izhevsky (2005) also from Transcaucasia; Armenia: reported by Mirzoian (1977) from North Armenia.

Hosts. Pinus.