Author's Organization：Graduate School of Science, Hokkaido University Graduate School of Science, Hokkaido University National Institute of Agro-Environmental Sciences
Published: May 25, 1998Received: December 12, 1997Available on J-STAGE: February 07, 2008Accepted: February 19, 1998
Advance online publication: -
Revised: -
The Mexican bean beetle, Epilachna varivestis, was confirmed in leguminous vegetable fields in Yamanashi and Nagano Prefectures, central Honshu, Japan in the summer of 1997. It was estimated that this species had already colonized these areas about four or five years earlier, and that the adults can survive the winter there.
