The genus name refers to the Puntanos, the colloquial name for the inhabitants of the province of San Luis after the old name of their capital "San Luis de la Punta de los Venados", and combines this with a Latinized Greek pteron, "wing". The specific name means "spherical" in Latin, a reference to the form of the lower tibia.
The genus name stems from the Puntanos, the colloquial term for San Luis residents, combined with a Greek word for wing, and the specific name signifies "spherical," referencing the lower tibia's morphology.