Abstract
Chironomids collected at seashore and estuaries by bottom sampling of larvae and sweeping and light sampling of adults were compiled during 1994 to 2010 throughout the Japanese Archipelagoes. A total of 87 species of 44 genera in the 4 subfamilies was collected. Eight genera were estimated to comprise marine species additionally to the 17 genera reported to date. Among 3 sampling methods, the highest number of species was collected by light sampling. Ainuyusurika tuberculatum and Cladotanytarsus vanderwulpi were the most widely collected from the Honshu to Yaeyama Islands, whereas Thalassosmittia nemalionis and Thalassomya japonica were collected in the Honshu and Shikoku Islands, and from the Kyushu to Yaeyama Islands, respectively. Tanytarsus boodleae and Yaetanytarsus iriomotensis were collected by all the methods, whereas Clunio tsushimensis was not collected by light sampling, suggesting the lack of phototaxis or weak flying ability of the species.
