It is endemic to Mexico and known from the surroundings of the Cofre de Perote in west-central Veracruz as well as from two localities in the adjacent northeast Puebla (near Teziutlán and González Ortega).

There is a slight, transverse gular fold, with the associated grooves reaching mid-dorsal line.

[2] Natural habitats of Pseudoeurycea melanomolga are pine forests and bunch grass above the tree line, at elevations of 2,250–4,000 m (7,380–13,120 ft) above sea level.

It is a terrestrial species typically found under rocks and logs on moist soils.

It tolerates some degree of habitat modification but is nevertheless threatened by habitat loss caused by logging, agriculture (including clearing for cattle and slash and burn practices), and human settlement.