Hydraena
Guides
Hydraena marginicollis
Hydraena marginicollis is a species of minute aquatic beetle in the family Hydraenidae. It is the namesake of the marginicollis group and marginicollis subgroup within the genus Hydraena. The species was described by Kiesenwetter in 1849. Distribution records indicate presence in the southeastern United States and the Bahamas.