Hylurgops glabratus (Zetterstedt, 1828)

Distribution in Iran. Mazandaran (Samin et al. 2011).

General distribution. Throughout the Palaearctic region from Europe and North Africa to China, Korea, Japan.

Biology. This species breeds in species of Abies, Picea and Pinus (Pinaceae) (Stark 1952; Pfeffer 1995). In Iran it is recorded from Abies nordmanniana (Samin et al. 2011) . Chararas (1962) gives details of the biology and gallery system. Other aspects of its biology are treated by Martikainen et al. (1996), Peltonen and Helioväara (1999), Schroeder and Lindelöw (1989, 2003), Gibb et al. (2006), Johansson et al. (2006).