Polygraphus proximus(POLGPR)
Distribution details in Japan (Hokkaido)
Current pest situation evaluated by EPPO on the basis of information dated
2011: Present, no details
* Niisima Y (1909) Die Scolytiden Hokkaidos unter Berücksichtigung ihrer Bedeutung für Forstschäden. The Journal of the College of Agriculture, Tohoku Imperial University, Sapporo, Japan 3(2), 109-179 (in German).
* Nobuchi A (1979) Bark beetles of tribe Polygraphini in Japan (Coleoptera, Scolytidae). Bulletin of the Forestry and Forest Products Research Institute 308, 1-14.
* Tokuda M, Shoubu M, Yamaguchi D, Yukawa J (2008) Defoliation and dieback of Abies firma (Pinaceae) trees caused by Parendaeus abietinus (Coleoptera: Curculionidae) and Polygraphus proximus (Coleoptera: Scolytidae) on Mount Unzen, Japan. Applied Entomology and Zoology 43(1), 1-10.
* Nobuchi A (1979) Bark beetles of tribe Polygraphini in Japan (Coleoptera, Scolytidae). Bulletin of the Forestry and Forest Products Research Institute 308, 1-14.
* Tokuda M, Shoubu M, Yamaguchi D, Yukawa J (2008) Defoliation and dieback of Abies firma (Pinaceae) trees caused by Parendaeus abietinus (Coleoptera: Curculionidae) and Polygraphus proximus (Coleoptera: Scolytidae) on Mount Unzen, Japan. Applied Entomology and Zoology 43(1), 1-10.