Nineteen mosquito species belonging to nine genera are recorded from Kuchinoshima, Nakanoshima and Takarajima of Tokara Archipelago, Japan: An. sinensis, An. lindesayi japonicus, Tp. bambusa yaeyamensis, Ml. genurostris, To. yanbarensis, Cq. ochracea, Or. anopheloides, A. nishikawai, Ae. togoi, Ae. albopictus, Ae. flavopictus downsi, Ae. riversi, Ae. vexans nipponii, Ar. subalbatus, Cx. ryukyensis, Cx. halifaxii, Cx. pipiens quinquefasciatus, Cx. tritaeniorhynchus and Cx. bitaeniorhynchus. All of them are new records from the islands. Among them 13 species are widely distributed in the Ryukyu Islands and the Palearctic Japan. Five species, Tp. bambusa yaeyamensis, Ml. genurostris, Ae. nishikawai, Ae. flavopictus downsi and Cx. ryukyensis, are an Oriental element and the northernmost records. An. lindesayi japonicus has not been found in the Ryukyu Archipelago and this is the southernmost record of this species. The distribution and habits of the species are also discussed.