Studies on the follicular development and overwintering of the house mosquito, Culex pipiens pallens in Nagasaki area.

Content Provider	Semantic Scholar
Author	Oda, Tsutomu
Copyright Year	1968
Abstract	The females of the house mosquito, Culex pipiens pallens, are gonoactive in summer and have commonor middle sized follicles of N to Ib in stage, while in September when temperatures fall rapidly and photoperiod becomes shorter by high speed, there occur females with large follicles and in some cases those with I-II or Ha stage ones. In late September and mainly in October, under slightly more lower temperatures, there occur females with small follicles. The females with large follicles seem to continue feeding and egg-laying till the end of autumn or even the beginning of winter and seem to die off in winter months. The females with small follicles being gonoinactive enter overwintering places such as caves which become to have middle sized follicles in January and February. The females are now gonoactive and all of them move out from the shelter with the further progress in follicular development by the end of March. Introduction The experiments the results of which were reported here were projected to make clear the mode of overwintering of the house mosquito, Culex pipiens pallens Coquillett, in Nagasaki area. For the purpose, the follicular development was * Contribution No. 528 from the Institute for Tropical Medicine, Nagasaki University and No. 176 from the Department of Medical Zoology, Nagasaki University School of Medicine
Starting Page	195
Ending Page	216
Page Count	22
File Format	PDF HTM / HTML
Volume Number	10
Alternate Webpage(s)	http://naosite.lb.nagasaki-u.ac.jp/dspace/bitstream/10069/4041/1/tm10_04_01_t.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article