Macrelmis grandis, Passos, Maria Inês Silva Dos, Miranda, Gustavo Silva De & Nessimian, Jorge Luiz, 2015

Passos, Maria Inês Silva Dos, Miranda, Gustavo Silva De & Nessimian, Jorge Luiz, 2015, Three new species of Macrelmis Motschulsky (Coleoptera: Elmidae: Elminae) from Southeastern Brazil with new definition of species groups to the genus, Zootaxa 4058 (2), pp. 195-210 : 204

grandis new species group

Diagnostic character: parameres with a longitudinal constriction in lateral view; distal half of parameres and aedeagus strongly curved ventrally; aedeagus slightly longer than parameres (see Hinton (1936): figs. 8, 9; Hinton (1940), figs. 118, 119).

Species: Macrelmis grandis and M. tarsalis .

Distribution ( Fig. 7 ): Mexico: Temascaltepec ( Hinton 1934). Costa Rica: Río Reventazon ( Hinton 1936).

History of the group: M. grandis was suggested as close to M. granigera by Hinton (1934) and to M. striata , M. striatoides and M. sandersoni by Hinton (1940), but its genitalia is completely different from the latter four species. M. tarsalis was not assigned to any group and was not compared to any other species in its description ( Hinton, 1936), but Hinton (1946) assigned M. isus as being similar to a group formed by M. tarsalis and M. clypeata (the last species now in its own group).

Figures

FIGURE 7. Distributional map of North and Central American species of Macrelmis. The species are shown separately to facilitate visualization. All maps are all in the same scale as the last one (bottom right).