Abstract

Japanese species of the genus Nipponomyia Alexander, 1924 are revised. Two new species, Nipponomyia okinawensis Kolcsar Kato, sp. nov. and N. yakushimensis Kolcsar Kato, sp. nov. are described from the Ryukyu Islands. Images of habitus and wings, illustrations of male and female terminalia, and distribution maps are provided for the Japanese species. A key to the world species of Nipponomyia is added. DNA barcodes of three Japanese Nipponomyia are provided, representing the first barcodes from the genus.