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 orcula Perkins, 1980 Figs. 84 (habitus), 88 (aedeagus), 200 (map) A more detailed aedeagal illustration is provided, as are habitus images of the holotype . No new locality records are available. Through the kind efforts of Brenda Smith-Patten (Oklahoma University) I was provided with copies of the field notes of the late Harley P. Brown, from which it has been determined that the type locality, "Ria Chim, Mosquito" is near Retiro, Goias, Brazil .