A note on the vector of Plasmodium juxtanucleare in Ceylon.

Bennett and Warren (1966a) working in Malaya, found C. sitiens infected with P. juxtanu­ cleare. The sporogonic development of P. juxtanucleare in C. sitiens was studied and it was shown for the first time that the parasite possessed a pedunculated oocyst. C. sitiens, how­ ever, was found to be "less than ideal as a vector of'P. juxtanucleare" as a high.percentage of experimentally infected mosquitoes showed degenerating oocysts. It was also found that C. sitiens was not completely susceptible to infection with the Ceylon strain of P. juxtanu­ cleare (Bennett and Warren, 19660).