2023 Volume 17 Pages 23-28
Numerous individuals of Hydrometra okinawana Drake, 1951 (Hemiptera, Hydrometridae) were collected from a pond surrounded by forest in Nikaho City (southern region of Akita Prefecture) in September 2015 and 2021. Until this finding, the northernmost record of this species was in Miyagi Prefecture, but this report updates that record. This is also the first record of this species in Akita Prefecture.