[Study on biological character of Hepialus introduced from Yunnan province].

To study the biological character of Hepialus introduced from Yunnan province.H. jianchuanensis introduced from Yunnan was bred artificially to observe its biological character.The pupa duration was about 40 d, pupa emergence lasted for one day, female to male ratio was about 1.2:1, the mating peak was 19:30-20:30, the adults duration was about 25 d, the average life time of female was 5-6 d and that of male 6-7 d, the average number of the producing egg was about 300, the average weight of the 100 eggs was 10.33 mg. Lasting period of the larva is 350 d and the infancy larva showed the character of the polyphagy and cold endurance.Results indicate that there are some differences in the whole duration, weight of the 100 eggs and the number of the eggs left in the abdomen between H. jianchuanensis and others bred at the Kangding base.