This species occurs on the eastern slopes of the Andes in Napo, Tungurahua, Morona Santiago and Zamora Chinchipe Provinces, Ecuador, between 1,272 and 2,370m asl.
Habitat and Ecology
It lives in premontane and cloud forest (Coloma 1995) but its tolerance of disturbed habitats is unknown. Reproduction probably occurs by females laying eggs on the ground, with the males bringing the larvae to streams for them to complete their development. In north-eastern Ecuador it occurs in sympatry with Colostethus bocagei, C. fuliginosus, C. kingsburyi, C. pulchellus and Minyobates abditus near Volcán Reventador. In south-eastern Ecuador the species occurs with C. kingsburyi, and C. pulchellus at the Pastaza trench, and further south with C. exasperatus, C. mystax and C. peculiaris.
It was at least formerly abundant, judging by the large series collected through 1984 in the Kansas Museum. It was common in a stream near Loma El Trigal, on the road between Loja y Zamora, in 1987.
The major threats to this species are habitat destruction and degradation due to agricultural development and logging.
Its range overlaps with Parque Nacional Sumaco Napo-Galeras, Parque Nacional Sangay, Parque Nacional Llanganates, the Reserva Ecológica Antisana and the Reserva Ecológica Cayambe-Coca.
Luis A. Coloma, Santiago Ron, Taran Grant 2004. Hyloxalus shuar. In: IUCN 2014