Abstract
Tabanus (Tabanus) otsurui n. sp. is described and figured (Fig.1, Fig.2) here, comparing with Tabanus (Tabanus) geminus Szilady which is similar to this species. The described holotype and allotype are ♀ and ♂ adults emerged from the larvae, which have been collected in slime of sewerage of hotspring, Myokokogen town, Niigata prefecture, 31 July 1958 and reared individually.
