Lepidopteran, coleopteran and orthopteran insects feeding on wild soybean, Glycine soja Sieb. et Zucc., and their seasonal occurrences in Kumamoto.

Abstract

Fauna of lepidopteran, coleopteran and orthopteran insects feeding on wild soybean, Glycine soja Sieb. et Zucc., and abundance of respective species in vegetations including wild soybean were investigated in Kumamoto City and its environs (Kumamoto, Kashima, Ozu, Koshi and Shisui) from 2011 to 2015. Lepidopteran insects, Paragabara ochreipennis, Omiodes miserus, O. indicatus, Matsumuraeses falca, and Pleuroptya ruralis were found in abundance at many surveyed vegetations. Coleopteran insects, Medythia nigrobilineata and Popillia japonica, as well as orthopteran insects Patanga japonica and Oecamthus euryelytra were found in abundance at only some surveyed vegetations. Many coleopteran and orthopteran insects were found in Kashima, whereas few in Shisui. It seems that the difference in abundance of each species among the surveyed vegetations could be caused by the presence and amount of host plants in the field habitat including the surrounding environment.