Notes on Ypirangathemis Santos (Odonata: Lebellulidae) with a Description of the Female of Y. Calverti Santos

The genus Y pirangathemis was described by Santos (1945) from four males, which he described as Y. calverti , n. sp. On the basis of wing venation and the structure of the male genitalia, Santos believed Ypirangathemis to be closely related to Erythrodiplax Brauer and to Tarnetrum Needham and Fisher.