Mnasitheus nitra Evans, 1955;  Comments: W Mexico, Guatemala, Belize to S Brazil TL: Brazil (Pr).

Mnasitheus nitra ♂ forewing venation and stigma.
WARNING: this is a modified image of Mnasitheus cephis Godman, [1900]venation from: Godman, Frederick DuCane, and Osbert Salvin 1899-1901.Biologia Centrali-Americana. Insecta. Lepidoptera-Rhopalocera. London,Dulau & Co., Bernard Quaritch. 2: 557-588, pls. 99-100 (December 1900),author: Godman, Frederick DuCane.p. 566, pl. 100, f. 26

The image was changed to match the original description from: Evans, William Harry 1955. A catalogue of the American Hesperiidae indicating the classification and nomenclature adopted in the British Museum (Natural History). Part IV. Hesperiinae and Megathyminae. London, British Museum (Natural History). v + 499 pp., pls. 54-88. pp. 144-145

Stigmas (brands) above and below vein CuA2 were extended to reach the base of the vein, and stigma below vein CuA2 (vein 2) was extended towards the margin, to make "brand under vein 2 much longer than the brands over veins 1 and 2".