中文摘要：

通过野外调查的方法，对吉林省延边地区舞毒蛾的生活史及幼虫孵化率进行了研究。结果表明，舞毒蛾在延边地区1年发生1代，以完成胚胎发育的“卵内幼虫”越冬。翌年5月上旬；杨树将要萌芽时幼虫开始孵化出壳。幼虫孵化始盛期为5月中旬，高峰期为5月下旬，末期为6月上旬；幼虫在7月上旬开始老熟化蛹，化蛹始盛期为7月中旬，高峰期为7月下旬，末期为8月上旬；成虫在7月中旬开始羽化，羽化始盛期为7月下旬，高峰期为8月中下旬，末期为8月底至9月初；产卵始盛期在7月中旬，高峰期为8月中下旬，末期在8月底至9月初；卵在8月底开始发育成较为完全的幼虫胚胎，随之进入滞育状态。根据舞毒蛾幼虫孵化率与日均温值的相关性，建立线性回归模型Y1=12．0742X1-139．1908来测报舞毒蛾幼虫的当日孵化率，并进行了回测验证。

英文摘要：

The field survey studied the life history of Lymantria dispar and larvae hatching rate in Yanbi- an of Jilin. The results showed that Lymantria dispar in Yanbian bred a generation every year to complete the overwintering of ＂larvae in eggs＂ with embryonic development . In early May next year, the budding poplar accompanied with the hatching of larvae. The hatching of larvae was prime in mid-May, climax in late May, and terminal in early June. Larvae aged to pupation in early July, which was prime in mid-Ju- ly, climax in late July, terminal in early August. Adult insects began to eclosion in mid-July with the prime period in late July, the peak in mid-to-end August and the terminal period from late August to early September. The spawning period was prime in mid-July, climax in mid-to-end August, and terminal in late August to early September. In the end of August, eggs developed into complete larvae embryos and entered a diapause state. Based on the relevance of the hatching rate of Lymantria dispar larvae and the daily average temperature, the linear regression model Y1 = 12. 074 2X1 - 139. 190 8 was established to predict the hatching rate of Lymantria dispar larvae that day, which was proved with the actual data.