This species is known from Pacific coastal Mexico, in central Sinaloa, southern Jalisco, Colima and Michoacán to Guerrero and the Isthmus of Tehuantepec, Oaxaca, Mexico.
Habitat and Ecology
This species inhabits lowland xeric and thorn-scrub forest and tropical deciduous forest. Its breeding season is restricted to the rainy season as it breeds in the temporary streams and ponds formed by rainfall.
This is a common species.
Changes in rainfall patterns affect the seasonal activity of this species. Fires might also impact it. But overall, this species is not significantly threatened.
The range of this species includes the Chamela-Cuixmala Biosphere Reserve. Further protection of the forest habitat of this species is needed.
Georgina Santos-Barrera, Luis Canseco-Márquez 2004. Diaglena spatulata. In: IUCN 2014