Sceloporus bicanthalis, the trans volcanic bunchgrass lizard, is a species of lizard in the family Phrynosomatidae, first described by Hobart Muir Smith as a subspecies of Sceloporus aeneus in 1937. It is endemic to Mexico. It was classified by the IUCN as a species with low risk. No subspecies are recognized.
Sceloporus bicanthalis is a small, viviparous lizard measuring on average 45mm in snout–vent length.
Sceloporus bicanthalis ranges eastwards from the eastern Valley of Mexico to the eastern end the Trans-Mexican Volcanic Belt, and into the northern Sierra Madre de Oaxaca.
This species is associated with tussock (bunchgrass) grassland habitats within open pine forests at elevations of 2900m–4400mm (9,500feet–14,400feetm) asl.