Seasonal change in microdistribution and adult age structure of Thricops diaphanus (Wiedemann, 1817) in central Japan (Diptera: Muscidae)
2004 年 55 巻 1 号 p. 39-45
詳細
2004 年 55 巻 1 号 p. 39-45
Precise description of life cycles based on the checking of ovaries of wild-caught flies revealed that Thricops diaphanus spends a uni-voltine life cycle at highlands in central Japan, though this species has been known to spend multi-voltine life cycles in Europe. In the collections of the flies at different altitude, seasonal migrations between highlands and lowlands of T. diaphanus were not observed. These facts suggest that T. diaphanus is a glacial relict species. Seasonal modification of the vertical microdistribution pattern of this species in subalpine coniferous forests seems to be related with the distribution of fungi in such forests.
