三带喙库蚊越冬前期体大小与经产及生殖营养分离的关系

Relationship of Adult size to Parity and Gonotrophic Dissociation of Culex tritaeniorhynchus Giles in Pre-hibernation

越冬前期三带喙库蚊有两种类型的翅、足长个体,长翅蚊占总数的46.6%,短翅蚊占53.4%。用概率纸分析翅、足长频数分布,表明越冬前三带喙库蚊翅、足长并非正态分布。未产卵蚊翅比产卵蚊长,短翅蚊生殖营养分离高于长翅型蚊。翅、足长短与吸血及交配没有关系。两种类型蚊的卵巢滤泡观察表明,几乎所有雌蚊都为非滞育蚊。

Wing and leg Length distributions of Culex tritacniorhynchus Giles fcmales in pre-hiberna tion(Oct. -Nov.) were found to include two different component groups with regard to wing and leg length. One was a long-winged group which accounted for about 46.6% of all the population, and the other was a shortwinged group making up 53.4% (Table 2). Wing and leg length distributions of the females did not prove to be the normal patterns using probability paper analysis for frequency distributions. The wing length of the nulliparous females was longer than that of the parous ones in prehibernation. Gonotrophic dissociation of the short-winged group was higher than that of the long-winged ones. The wing and leg length ot the females didn't related to the blood-fed activity and mating. Observations on ovarian development of both wing length females show that the females almost were in a non-diapause.