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 ) arenicola Perkins Hydraena arenicola Perkins 1980: 75 The new records below document new localities and a new depository for identified specimens of this species, which is presently known from northern Oregon south to southern California . Greatest population density in coastal mountain ranges of northern California . New records: U.S.A. : California , 10 mi. SW Paskenta , Bennett Creek , 3.xii.1991 , leg. D. S. Chandler (2 UNH ) ; Mendocino National Forest , 3 mi. NE Log Springs , Lantz Ridge , 3.xii.1991 , leg. D. S. Chandler (1 UNH ) ; Mendocino National Forest , 7 mi. W Log Springs , Grindstone Canyon , 30.xi.1991 , leg. D. S. Chandler (4 UNH ) ; Oregon , Lane Co. , H. J. Andrews Exp. For Lookout Cr. , 12–15.v.1984 , leg. D. S. Chandler (4 UNH ) ; H. J. Andrews Exp. For. , Mack Creek , 18.v.1983 , leg. D. S. Chandler (5 UNH ) .