Wang R L, Zhang E Y, Min J G
Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi. 1989;7(1):35-9.
By comparing the diapause responses between locally hibernating species, C. pipiens pallens, and C. tritaeniorhynchus the overwintering way of which is yet unknown, we found the relative identities of these 2 species in their ovarian diapause criteria, change of the mid-gut and the behaviour of refusing blood feeding. The increases in body weight and fatty contents in the dispersed tritaeniorhynchus were much less than those in diapause pipiens species. Moreover, their ability to resist low temperature was also found significantly weaker. In Shanghai area, the date of the critical photoperiod for C. tritaeniorhynchus was found around the 25th of September with a daylight exposure length (including twilight) of about 13 hours and 43 minutes, being 20 days earlier than that of the locally hibernating species C. pipiens pallens. The gonotrophic dissociation during critical photoperiod occurred more frequently in tritaeniorhynchus than in pipiens mosquitoes. In contrast to pipiens species, it is extremely difficult to obtain diapause tritaeniorhynchus in nature post critical photoperiod. The possibility of a seasonal migratory behaviour of C. tritaeniorhynchus was discussed.
通过比较本地冬眠物种淡色库蚊（Culex pipiens pallens）和越冬方式未知的三带喙库蚊（Culex tritaeniorhynchus）之间的滞育反应，我们发现这两种物种在卵巢滞育标准、中肠变化和拒食行为方面具有相对一致性。处于分散状态的三带喙库蚊体重和脂肪含量的增加远低于处于滞育状态的库蚊物种。此外，还发现它们抵抗低温的能力明显较弱。在上海地区，三带喙库蚊的临界光周期日期约为9月25日，日照时长（包括晨昏蒙影）约为13小时43分钟，比本地冬眠物种淡色库蚊早20天。在临界光周期期间，三带喙库蚊的生殖营养分离比库蚊更频繁。与库蚊物种相比，在临界光周期后，在自然界中极难获得处于滞育状态的三带喙库蚊。本文还讨论了三带喙库蚊季节性迁飞行为的可能性。
