Xyleborinus attenuatus (Blandford, 1894) Fig. 13

Xyleborus attenuatus Blandford, 1894.

Xyleborinus alni Niisima, 1909. Synonymy Knížek 2011.

Type material.

Holotype female; Nikko, Japan; BMNH.

Distribution.

Asia; Europe (introduced); North America (introduced): Canada: British Columbia, Nova Scotia, Ontario, Quebec; United States: Maine, Maryland, Michigan, New York, Oregon, Pennsylvania, Washington.

Notes .

Similar to X. saxesenii, but can be distinguished by the larger size and the pointed and hooked tubercles on the declivity (Holzschuh 1994, Hoebeke and Rabaglia 2007).