扫灰蝶生活史及其生物学特性观察

目前,中国灰蝶分类研究工作较为深入,已取得一定进展,然而有关灰蝶生物学、生态学等方面的研究报道较为少见。通过室内饲养与野外观察结合的方法,在秦岭山区对扫灰蝶Subsulanoides nagata的生活史及其生物学特性进行观察。结果发现,扫灰蝶1年2代,以蛹越冬,翌年5月初越冬蛹开始羽化活动,5月下旬为第1代成虫的羽化高峰期,第2代成虫期于7月中旬出现,可持续至8月中旬。成虫将卵散产于寄主植物啤酒花Humulus lupulus嫩芽,幼虫共4龄,幼虫期23~28d。扫灰蝶的栖息地主要为海拔1 300~1 600m的开阔林间草地。

The Bionomics of the Butterfly Subsulanoides nagata Koiwaya

The taxonomy of Chinese Lycaenidae has made progresses so far, however, little attention has been given to the biology and ecology of lycaenid butterflies. In this study, the life history and behaviors of Subsulanoides nagata were studied by indoor breeding and field investigations in Qinling Mountains. The results show that S.nagata is bivoltine and overwinters as pupae.The adults of first generation eclose in early May, reaching the peak of population density in late May; the adults of second generation occur from mid July to mid August. Larvae host plant is Humulus lupulus and the females lay eggs on the terminal buds separately. The larvae have four instars. The total duration of larval stage lasts for 23-28 days. The habitat of S.nagata is in the open glades and grasslands in the forests with the elevation range from 1 300-1 600 m.