| natural infection of aedes trivittatus (coq) with dirofilaria immitis in central iowa. | juveniles identified as dirofilaria immitis were recovered from aedes trivittatus and anopheles punctipennis collected co2-baited cdc light traps in ames, iowa, during 10 days in july and august 1975. ae. trivittatus composed 58.7% of the mosquitoes collected, and d. immitis was recovered from 18 of 393 (4.6%) dissected and from 7 of 31 pools (911 mosquitoes; 0.77%). approximately 1.0% of the ae. trivittatus collected harbored infective-stage juveniles, and as many as 27 were recovered from a si ... | 1976 | 1263039 |