Autogeny in Culex pipiens quinquefasciatus say

Autogeny was observed in a laboratory colony of Culex pipiens quinquefascia tus Say originating from Hyderabad, India. In a strain selected for an auto geny for 15 generations, all females, both mated and unmated, were able to mature eggs although the unmated females were unable to oviposit them. Inge sting glucose had little effect on the expression of autogeny and on the nu mber of eggs in rafts in the laboratory experiments. Most autogenous female s can ingest blood during first gonotrophic cycle, if the host is available . The blood feeding that occurred during the first cycle to initiate the se cond cycle was not confirmed, however, we cannot exclude this possibility.