The Appearance of the Coleoptera Captured with Pit-fall Trap at the High Place of Mt Hakusan

Abstract

The appearance of Coleoptera except for Carabidae in three plant communities at the high place of Mt Hakusan was studied by bated pit-fall trap. Seventeen species of Coleoptera were collected. All species of Silphidae were captured only with powdered pupa, and Omosita colon and Homotechnes motschulsky mutsuurai were more captured with sushi-vinegar than with powdered pupa. Species in Pinus community was larger in number than in Phyllodoce and Carex communities. However, the number of individuals found in three plant communities are slightly different from one another. Many species of Staphylinidae were captured in Pinus community, H. motschulsky mutsuurai was mainly captured in Phyllodoce community, and Scepticus insularis was mainly captured in Phyllodoce and Carex communities. The habitat (plant community) preference of the beetles may be different in each species as far as the beetles collected from Mt Hakusan are taken into account.