Macrelmis striata

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 : 209

striata species group Hinton, 1940

Diagnostic character: aedeagus with a constriction in the median region, tapering towards the apex ( Figs. 4D – F ).

Species: Macrelmis sandersoni , M. striata and M. striatoidea .

Distribution ( Fig. 7 ): Mexico: Temascaltepec and Morelos ( Hinton 1936; Hinton 1940; Brown 1984). Guatemala: Rio Naranjo ( Sharp 1882).

History of the group: Hinton (1940) stated that M. striatoidea , M. striata and M. sandersoni are similar to each other, but did not formally describe the species group. He differentiated the species based on presence/absence of fine hairs on the four basal tarsi segments. Hinton (1940) also stated that M. grandis resembles these three species (despite of being associated to M. granigera by Hinton (1934)) being different in size, but the male genitalia of M. grandis fits in the grandis species group and should not be included in this 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).

FIGURE 4 A – F. Male genitalia of Macrelmis. A – C. granigera sp. group. A. M. granigera. B. M. scutellaris (both modified from Hinton, 1940). C. M. shoemakei (modified from Brown, 1971). D – F. striata sp. group. D. M. striata (modified from Hinton, 1940). E. M. sandersoni. F. M. striatoidea (both modified from Hinton, 1936 a). Scale bars: 0.1 mm.