キンウワバ類（鱗翅目・ヤガ科）4種の飛翔，摂食およびコーリング活動時間帯の比較

抄録

In general, plusiine moths actively begin flying from dusk and feeding and calling activities have been clearly discussed in many reports. We examined daily behaviors, specifically, flight, feeding and calling activities of the plusiine moths, Autographa nigrisigna, Thysanoplusia intermixta, Ctenoplusia agnata and Chrysodeixis eriosoma, which are major pests of various commercial crops in the Kanto region of Japan. Daily flight activities were tested with an actograph system in the laboratory. The insects showed pronounced flight activity soon after the lights were turned off, during darkness and after the lights were turned on. Of specific interest is that during darkness, C. eriosoma showed high flight activity earlier than the other three species. We also observed daily feeding and calling activities, and found these two activities were synchronized with flight activity. We conclude that patterns of calling and associated flights are not the same for all plusiine species although most adults of the Plusiinae fly actively during darkness.