New records and description of fifty-four new species of aquatic beetles in the genus Hydraena Kugelann from South America (Coleoptera: Hydraenidae) Author Perkins, Philip D. text Zootaxa 2011 2011-10-28 3074 1 198 journal article 31530 10.5281/zenodo.1050060 2d28bebf-e3c5-457b-9152-8a6877ded281 1175-5326 1050060 Hydraena peru Perkins, 1980 Figs. 135 (habitus), 137 (aedeagus), 200 (map) A more detailed illustration of the holotype aedeagus is provided, as are habitus images of the holotype . No new locality records are available.