Cyanallagma corbeti sp. nov. from Brazil (Odonata: Coenagrionidae)

Abstract The new species Cyanallagma corbeti (holotype ♂: Brazil, Rio Grande do Sul State, Rio do Pinto river, km 93 of road RS-453 between São Francisco de Paula and Rio Tainha, 29°30′70″S, 50°51′70″W, 900 m, 09 xi 1967, leg. N.D. Santos); deposited in the Museu Nacional (UFRJ), Rio de Janeiro, Brazil is described, illustrated, and compared with the other species of the genus. A justification for the placement of this new species in Cyanallagma is presented, and males of known species of the genus are keyed.