论文部分内容阅读
1991~1992年在实验室条件下,对黑胸大蠊生物学进行了系统研究。黑胸大蠊完成一个世代需324.93天。成虫于4月下旬开始羽化,至8月下旬结束,高峰是5月下旬(♂)和7月上旬(♀)。雌成虫于5月中旬开始产卵,至翌年1月下旬结束,高峰是7月下旬,产卵前期15.1±0.74天,产卵期155.3±12.9天,产卵后期29.3±8.4天。每头雌成出产卵鞘27.67±2.17个。产卵间隔时间6.75±0.68天,成虫寿命202.3±16.45天。卵鞘历期46.03±1.68天。每个卵鞘含卵20.51±0.97粒。若虫有8~9个龄期,经7~8次蜕皮后变为成虫。大部分(85.71%)雄性若虫经7次蜕皮变为成虫,大部分(75.00%)雌性若虫经8次蜕皮变为成虫,若虫历期263.8天。
From 1991 to 1992 under the laboratory conditions, the biology of Peripitidae was systematically studied. Black cockroach to complete a generation to be 324.93 days. The adults began to emerge in late April and ended in late August with the peaks in late May (♂) and early July (♀). Female adults started to lay eggs in mid-May and ended in late January of the following year. The peak was in late July, 15.1 ± 0.74 days in pre-oviposition, 155.3 ± 12.9 days in oviposition period, 29.3 ± 8.4 days. Erection sheaths per head were 27.67 ± 2.17. Spawning interval 6.75 ± 0.68 days, adult life expectancy 202.3 ± 16.45 days. Egg shell duration 46.03 ± 1.68 days. Each egg sheath contains 20.51 ± 0.97 eggs. Nymphs have 8 to 9 age, after 7 to 8 molts become adults. Most of the male nymphs (85.71%) became adults after 7 eclosions, and most of the female nymphs (75.00%) became adults after 8 eclosions. The nymphs lasted for 263.8 days.