乌苏里鸣螽生物学特性研究初报

Bionomics of Gampocleis ussuriensis

研究了乌苏里鸣螽的生物学特性。该虫在河北省秦皇岛市 1年发生 1代 ,以滞育卵在土内越冬 ,翌年 3月下旬～ 6月上旬孵化为若虫。若虫共 7龄 ,1龄期 1 3～ 2 9d ,2龄期 8～ 2 0d ,3龄期 7～ 1 3d ,4龄期 6～ 9d,5龄期 6～ 9d ,6龄期 5～ 1 5d ,7龄期 1 2～ 1 7d。 6月下旬～ 8月中旬羽化为成虫 ,雌成虫产卵自 7月上旬至 9月下旬结束。成虫平均寿命 81 2 5d。

The bionomics of Gampocleis ussuriensis Adelung in the laboratory and field were observed. It has one generation per year in Qinhuangdao City, Hebei Province and overwinters as eggs in soil. The nymph has 7 instars, the 1st instar stage was 13～29 days, 2nd instar 8～20 days, 3rd instar 7～13 days, 4th and 5th instars each 6～9 days, 6th instar 5～15 days, and 7th instar 12～13 days. The period of the adult emergence was from the last ten days of June to the middle ten days of August. The oviposite period of the female adult was from the first ten days of July to the last ten days of September. The average longevity of the adults was 81.25 days.