RESPONSE OF IOWA MOSQUITO POPULATIONS TO UNUSUAL PRECIPITATION PATTERNS AS MEASURED BY NEW-JERSEY LIGHT TRAP COLLECTIONS

New Jersey light trap data from 1993, a year with unusually high amoun ts of precipitation, and 1994 were compared with mean light trap count s for the previous 8-10 years in each of 6 locations. The study took p lace in Iowa. In 1993, Aedes trivittatus and Culex tarsalis population s were unchanged. Anopheles punctipennis and Culex pipiens complex pop ulations were significantly higher, and Aedes vexans populations incre ased in all 6 sites, significantly so in 2 sites. Species composition was unchanged. In 1994, populations of each of these species were not significantly different from the long-term means. Aedes vexans populat ions were above average in all sites and populations of the remaining species were below average.