Host seeking in Culex salinarius was studied at 2 locations in New Jersey during 1977 and 1978. The results at both sites indicated that the species was most active within 2 hr after sunset. Sampling with pigeon traps and a standard sweep net showed a significant reduction in host seeking activity during the remainder of the night, and no increase in activity was noted prior to dawn. The effects of environmental conditions and the physiological age of the population were statically analyzed to determine the degree of influence they exerted on the host-seeking cycle. Elevated temperatures increased the number collected slightly, but relative humidity, cloud cover, wind, and parous rate did not affect the basic pattern. The information obtained from the study demonstrated that control measures for adult Cx. salinarius might be more effective if applied during the evening hours.
