松阴吉丁生物学特性研究初报

A Preliminary Report on the Study of Biological Characteristics of the Phaenops yin.

松阴吉丁在河北承德1a发生2代,以幼虫在木质部内越冬。翌年4月开始活动,4月底至6月越冬代成虫羽化,羽化盛期在5月。7月初第2代幼虫老熟化蛹,7月中旬至8月第1代成虫羽化,盛期在8月上中旬,10月中下旬第2代幼虫开始越冬。

Phaenops yin Kuban ＆ Bfly has two generations per year in Chengde city, Hebei province. Its larva lives through the winter in the xylem. The larva starts movement next April, and the overwintering imago emergences from the end of April to June, and eclosion come to its peak time in May. The first generation larva pupates at the beginning of July. The first generation imago emergences from the second ten days of July to August, its peak season comes in the first and second ten days of August. The second generation larva starts to live through the winter in the second and last ten days of October.