Poblana squamata, the Quechulac silverside, is a species of neotropical silverside endemic to Mexico. It was described by Jose Álvarez del Villar in 1950 from types collected from the crater lake of Quechulac which is 6.5km (04miles) southeast of Alchichica, Puebla State, Mexico at and elevation of 2365m (7,759feet).