Edessinae have seven genera, among them Edessa is the largest with more than 250 names proposed and more than 300 species to be described. The diversity resulted in a complex taxonomical history, so Edessa is the genus with more taxonomical and nomenclatural problems in Edessinae. Review the genus in groups of species is the best proposal to organize Edessa and it already resulted in description of two new genera of Edessinae. This study selected three species described by Beddin (1905), in addition to eight new species chosen for morphological characters. A new genus to Edessinae is proposed, uniting species with four black and punctured stripes longitudinal on dorsal surface of the head; humeral angles laterally projected, slightly flattened dorso-ventrally; metasternal process with branches of bifurcation narrow, long, thin in the apex; abdominal trichobothria placed laterally, not aligned with spiracles; gonocoxites 8 and laterotergites 8 always punctured in females; gonocoxites 8 large, subequal in length to laterotergites 9; pygophore with dorsal rim with semicircular excavation, paramere posteriorly projected, genital cup superior process dark, laminar, partially fused to the cup process. Edessa pallicornis, E. bugabensis, E. rorativentris and E. stillativentris are redescribed and transferred to the new genus. E. strigiceps is proposed as junior synonym of Gen. nov. pallicornis. This study gives the first description of males of Gen. nov. bugabensis and Gen. nov. rorativentris. Extended distribution of Gen. nov. bugabensis (Costa Rica), Gen. nov. rorativentris (Brazil), Gen. nov. stillativentris (Colombia). The lectotype of Gen. nov. bugabensis is here designated. Eight new species are described to the new genus: Gen. nov. sp. n. 203a, Gen. nov. sp. n. 203e, Gen. nov. sp. n. 205, Gen. nov. sp. n. 206, Gen. nov. sp. n. 207, Gen. nov. sp. n. 207c, Gen. nov. sp. n. 297 e Gen. nov. sp. n. 297b.
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