Aedes vexans and Other Potential Mosquito Vectors of Dirofilaria immitis in Minnesota

Abstract
Investigations were conducted during 2 summers, and the information derived from 2 11-week periods of trapping several species of mosquitoes found in Minnesota was incorporated. Two types of traps were used, a stable trap in which the mosquitoes were given an opportunity to obtain a blood meal from an Infected dog, and a New Jersey type light trap which yielded naturally infected specimens. The results indicated that Aedes vexans was the best potential vector of Dirofilaria immitis in this northern area. Complete larval development of D. immitls was observed In Anopheles walkeri. This mosquito may prove to be a vector in areas where it occurs in sufficient numbers.