Heteragrion luizfelipei sp. nov. from Santa Catarina, Heteragrion gracile sp. nov. from Minas Gerais) and Heteragrion mantiqueirae sp. nov. from São Paulo are described and illustrated. The color and structural characters that distinguish these species from those of Selys group 2 are discussed. The holotype of Heteragrion dorsale Selys, 1862 is redescribed and illustrated.
Damselfly; Zygoptera; taxonomy; type specimen