Nagano and Yamanashi prefectures of Japan comprise an inland mountain area that extends widely north and south, with elevation varying greatly by location. Mosquitoes transmitting infectious disease have a diversity of habitats in Nagano and Yamanashi, and many species can be expected there. However, there have been few reports on mosquito fauna; in particular, little information is available on mosquitoes such as . The mosquito fauna was investigated to clarify their elevational distribution ranging from 317 to 1,534 m, focusing especially on , in 24 areas in Nagano and Yamanashi prefectures from July to September in 2012-16. Adult mosquitoes were collected using the Centers for Disease Control and Prevention traps in each area, in addition to larval mosquito collections at several temple and shrine precincts in each area. At sites where elevations were >800 m (14 sites), no adult were captured. In addition, larval were not collected at elevations >728 m (15 sites). was captured at 20 other sites (annual mean air temperature ranged from 9.4 to 15.2°C, July-September mean air temperature ranged from 19.9 to 25.0°C).

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http://dx.doi.org/10.2987/19-6902.1DOI Listing

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