Studies on the Chironomid Species Collected with Light Trap in Sunaba, Kurobe, during the Winter Season from December to April, 2000

Night collections of adult chironomid midges with a light trap were conducted during the winter season from December 1999 to April 2000, at intervals of about 2 weeks, in a garden of our laboratory surrounded by trees and located near a stream containing natural spring waters. The specimens were preserved in 70% ethanol medium, and were all individually mounted on slides following our routine methods. As the results, a total of 58 adult male specimens were examined and identified, and they were classified into 15 species, which included 3 new species. Although the numbers of specimens collected were very small, they included taxonomically interesting species which could not be found in the spring to autumn seasons when large numbers of chironomid specimens could be collected with the same method