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 alludes to the Puntanos, the local term for San Luis residents, combined with a Latinized Greek pteron, "wing", and the specific name signifies "spherical" in Latin, referencing the lower tibia's shape.