抄録
The fauna and distribution of the blackflies in Kanagawa Prefecture were investigated by collecting the immature stages of flies at 33 sites in spring seasons of 1986. A total number of 2, 444 larvae and 243 pupae belonging to 2 genera and 14 species was collected at 23 sites, which are located mainly in highlands of the western part of Kanagawa Prefecture. Three species, Simulium ogatai, S. aureohirtum and S. nikkoense were newly recorded from Kanagawa. Predominant species was S. japonicum (36%) followed by S. uchidai (35%) and Prosimulium yezoense (19%).