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Mosquito collections were carried out using dry-ice traps at Nagura Amparu, Ishigaki Island, Japan, in June and August 2011 and March and September 2012. Dry-ice traps were placed at four collection sites with different surrounding environments in Nagura Amparu, such as a riverside, rice fields, a tree row and bushes, and one place in a residential area in Ishigaki City for comparison. A total of 6,558 females of 22 species in 8 genera were collected at Nagura Amparu. The dominant species were Culex tritaeniorhynchus, Cx. vishnui, Cx. sitiens, and Cx. pseudovishnui, comprising 77% of the total. In the residential area, a total of 875 females of 6 species in 4 genera were collected. Aedes albopictus and Cx. quinquefasciatus comprised 94% of the total.
Tsuda et al. (Mon,) studied this question.