Portelmis Sanderson, 1953

Fernandes, André S., Passos, Maria Inês S. & Hamada, Neusa, 2010, The genus Portelmis Sanderson, 1953 (Coleoptera: Elmidae: Elminae): first report in Brazil, description of two new Amazonian species and species key for males, Zootaxa 2517, pp. 33-43 : 34

Portelmis Sanderson, 1953

( Figs. 2–19 )

Stenelmis nevermanni Hinton, 1936: 424 .

Portelmis nevermanni: Sanderson, 1953: 35 ; Spangler, 1980: 63. Portelmis gurneyi Spangler, 1980: 63 .

Diagnosis. Presence of a transverse ridge behind the posterior margin of the eyes. Pronotum generally longer than wide. Elytra without sublateral carinae; with striae and punctures distinct; with a deep, lateral, marginal excavation near the elytral apex, accompanied by the prolonged lateral margin of the ventrite V, which fits into this excavation. Plastron confined to the ventral surface.

Species groups. Based on morphological data, two distinct groups of Portelmis species were erected, nevermanni Group ( P. nevermanni and P. kinonatilis ) and gurneyi Group (P. g u r n e y i and P. paulicruzi ). Characteristics of selected structures used to distinct the Groups are compared in Table 1 .

Figures

FIGURES 2 – 5. Portelmis kinonatilis sp. nov.; 2) Dorsal habitus. 3) Ventral habitus. Portelmis nevermanni (Hinton, 1936); 4) Dorsal habitus. 5) Ventral habitus. Scale bars: 0.5 mm.

FIGURES 6 – 9. Portelmis paulicruzi sp. nov.; 6) Dorsal habitus. 7) Ventral habitus. Portelmis gurneyi Spangler, 1980; 8) Dorsal habitus. 9) Ventral habitus. Scale bars: 0.5 mm.

FIGURES 10 – 19. Portelmmis kinonatilis sp. nov.; 10) Male genitalia, dorsal view. 11) Male genitalia, lateral view. 14) Female genitalia, ventral view. Portelmis paulicruzi sp. nov.; 12) Male genitalia, dorsal view. 13) Male genitalia, lateral view. Portelmis gurneyi Spangler, 1980; 15) Female genitalia, ventral view; 16) Male genitalia, ventral view; modified from Spangler (1980). 17) Male genitalia, lateral view; modified from Spangler (1980). Portelmis nevermanni (Hinton, 1936); 18) Male genitalia, ventral view; modified from Spangler (1980). 19) Male genitalia, lateral view; modified from Spangler (1980). Scale bars: 0.25 mm.