Taxonomy of Ecuadorian water beetles in the genus Hydrochus Leach, 1817 (Coleoptera: Hydrochidae) Author Perkins, Philip D. text Zootaxa 2020 2020-06-11 4790 2 358 374 journal article 21707 10.11646/zootaxa.4790.2.10 3f492afe-37c4-4bc9-b7d1-5f8d804cf5bb 1175-5326 3889408 7F4A9B99-C12E-473B-B258-7BE5697F4986 Hydrochus bicarinatus Perkins Hydrochus bicarinatus Perkins 2019c: 23 Originally described from Venezuela , the following specimen records are from Ecuador . Images of the holotype habitus and male genitalia are given in Perkins (2019c) . Material examined (80): Ecuador : Los Rios , Babahoyo , ( 1°48’S , 79°32’W ), 21.vi.1975 , leg. Cohen , Langley , & Monnig (60 NMNH ) ; Quevedo , ( 1°2’S , 79°28’W ), 11.v.1975 , leg. Spangler , et al . (2 NMNH ) ; Quevedo ( 11 km S), 3.vii.1975 , leg. Langley & Cohen (2 NMNH ) ; Manabi , Bahia de Caraquez ( 35.6 km E), ( 0°40’20’’S , 80°5’9’’W ), 10.v.1975 , leg. P. J. Spangler (3 NMNH ) ; Tosagua , 5.iii.1978 , leg. J. J. Anderson (11 NMNH ) ; Napo , ca. Shushufindi , ( 0°18’S , 76°25’W ), 21.ix.1975 , leg. Langley & Cohen (2 NMNH ) .