Studies on the additional chironomids (Diptera, Chironomidae) collected at Kamikochi and Asama-Onsen, Nagano, Japan

Abstract

Following the studies on the chironomids collected in Kamikochi and Asama-Onsen areas carried out in May 1990 and published by Sasa and Hirabayashi (1991), more extensive collections of the chironomids were conducted by the same workers in May 1991 in the same areas, and 27 species (including 12 new species) were recorded from Kamikochi, and 20 species (including 5 new species) were recorded from the latter, making 30 species from the former area and 29 species from the latter area in total. These results seem to represent chironomid fauna typical of a highland valley and a lowland valley of central Honshu.