Hinton, 1946a : 129 Brown, 1984 : 125 Checklist of the Elmidae (Coleoptera: Byrrhoidea) of Brazil Segura, Melissa Ottoboni Valente-Neto, Francisco Fonseca-Gessner, Alaíde Aparecida Zootaxa 2012 3260 1 18 Hinton, 1946 Hinton 1946 [151,480,255,280] Insecta Elmidae Macrelmis Animalia Coleoptera 8 9 Arthropoda species isis     Elsianus isus  Hinton, 1946a: 129    Macrelmis isis  Brown, 1984: 125  BRAZIL: Santa Catarina: Nova Teutônia—Hinton (1946a), Brown (1984).