Pteronotus mexicanus is an insect-eating bat from Mexico's Pacific slope. A 2024 paper treats it as a distinct species from the P. parnellii group and lists habitats ranging from forest to dry shrubland.
The dorsal fur is cinnamon-colored, with shade varying by locality. Hairs occur on the upper lip, and the lower lip has folds and wart-like structures.
The paper describes it as insectivorous and lists tropical deciduous forest, lowland forest, and xeric shrubland among its habitats.
An extinction-risk assessment has not been added yet.