Pyrcz & Viloria, 2007; Tropical Lepidoptera 15(1-2): 44:

Steremnia pronophila pronophila (C. & R. Felder) occurs in the Colombian Cordillera Oriental, whereas S. selva Adams flies in the Cordillera Central, and Ecuador. Adams (1986) reports it from upper cloud forests and forest-páramo ecotone. However, in El Tamá S. pronophila fluminea flies at much lower elevations and is particularly abundant at 2200-2300m.