Studies on the mosquitoes in Yaeyama Islands, Japan : 8 On the mosquitoes collected in Yonagunijima

Abstract

A survey was carried out to clarify the mosquito fauna of Yonagunijima located between Iriomote-jima and Taiwan. The mosquitoes were collected five times trom June 1977 through August 1981. In total, 26 species of 9 genera were recorded in the present survey. Among them, following 15 species were recorded for the first time from Yonagunijima : Mimomyia elegans, Mansonia uniformis, Uranotaenia ohamai, Uranotaenia annandalei, Aedes baisasi, Aedes vexans nipponii, Aedes lineatopennis, Culex nigropunctatus, Culex infantulus, Culex bicornutus, Culex pallidothorax, Culex ryukyensis, Culex bitaeniorhynchus, Culex tritaeniorhynchus, and Culex vagans. Tripteroides bambusa yaeyamensis, Aedes riversi, Culex bicornutus and Culex in-fantulus were predominant species and Aedes riversi was the most voracious biter in the forest area. Aedes vexans nipponii, Anopheles sinensis and Culex tritaeniorhynchus were commonly found in paddy fields and swamps, and Aedes albopictus and Culex pipiens quinquefasciatus were predominant in artificial containers and the most voracious biter around dwelling area. The important vector mosquitoes, Anopheles minimus and Aedes aegypti which were recorded before in this island, were not found in the present survey.