Three new species of Macrelmis Motschulsky (Coleoptera: Elmidae: Elminae) from Southeastern Brazil with new definition of species groups to the genus Author Passos, Maria Inês Silva Dos Author Miranda, Gustavo Silva De Author Nessimian, Jorge Luiz text Zootaxa 2015 4058 2 195 210 journal article 39260 10.11646/zootaxa.4058.2.3 aef58d69-0e0c-4ad8-8e27-3a00ea2bc448 1175-5326 241270 7BF705F4-BB24-4BC4-9430-A2AB8A990DDF jureceki new species group Diagnostic character : presence of folded structure ventrally to the aedeagus; parameres shorter than aedeagus (see Jach (2002) : figs. 2–4; Spangler & Santiago (1986) : figs. 1, 2). Species: Macrelmis jurececki and M. leonilae . Distribution ( Fig. 7 ): USA : California ( Jäch 2002 ). Mexico : Oaxaca, Veracruz: Chiapas, Guerrero, Morelos ( Spangler & Santiago 1986 ). Guatemala : El Progreso ( Spangler & Santiago 1986 ). Honduras : Choluteca, El Paraíso and Francisco Morazan ( Spangler & Santiago 1986 ). History of the group : Jäch (2002) considered M. jureceki similar to M. isus , both species differing in body size, pronotal and elytral width, elytral sculpture, size of prosternal process, and impressions on metasternum and first abdominal sternite; besides these differences, the male genitalia of these two species are completely different, dissimilar enough to separate them in different species groups, as proposed here. Brown wrote in an unpublished letter that M. jereceki resembles M . tarsalis “in dimensions and general appearance”, but their genitalia differ considerably (see grandis species group; Jäch 2002 ).