This species is known from the humid lowland and premontane zones of southwestern Costa Rica and adjacent southwestern Panama, at elevations of 10-1,220m asl (Savage, 2002).
Habitat and Ecology
It is a large, nocturnal, terrestrial species of primary humid lowland forest, secondary forest, and plantations. It breeds by direct development and the eggs are probably deposited in leaf-litter. Juveniles may be found active during the night and day. Juveniles have been seen mainly in the mid to late wet season (Savage, 2002, M. Ryan pers. comm.).
It is a common species that is regularly seen in Costa Rica. It is not very abundant from the Río Terraba to Río Savagre along the Pacific slope of Costa Rica, and appears to be one of the least common frogs in this region.
It is generally threatened by habitat loss resulting from deforestation. In five years of surveys it was not found to occur in forest patches less than 10ha in size (M. Ryan pers. comm.).
Although there are no specific conservation measures in place, the species has been recorded from a number of protected areas in Costa Rica. Further research is needed into the range, ecology, and potential conservation measures for this frog.
This species was previously within the genus Eleutherodactylus (Crawford and Smith, 2005).
Solís, F., Ibáñez, R., Chaves, G., Savage, J., Jaramillo, C., Fuenmayor, Q. & Bolaños, F. 2008. Craugastor rugosus. In: IUCN 2014