New Neotropical and Nearctic species of water beetles in the genera Hydraena Kugelann and Ochthebius Leach, a key to North American genera and subgenera of the family, new distribution records, and a synopsis of ecology, behavior and morphology related to aquatic life (Coleoptera: Hydraenidae) Author Perkins, Philip D. text Zootaxa 2023 2023-11-07 5367 1 1 86 https://www.mapress.com/zt/article/download/zootaxa.5367.1.1/52225 journal article 10.11646/zootaxa.5367.1.1 1175-5334 10145106 5A1E5321-D2BA-4B92-BA23-A7C1CDBA5723 Hydraena ( Holcohydraena ) angulicollis Notman Hydraena angulicollis Notman 1921: 146 The new record below documents a new locality and the first record for Alaska. This species is the only Hydraena with a trans-Canadian distribution, ranging from Alaska, Denali State Park to Fort Simpson, Northwest Territories in Canada and southeastward to Maryland. New record: U.S.A. : Alaska , Denali State Park , Byers Lake , 26.vi.1978 , leg. A. Smetana & E. Becker (3 MCZ ) .