A new stream treefrog of the genus Hyloscirtus (Amphibia, Hylidae) from the Rio Negro-Sopladora National Park, Ecuador

Recent surveys in the Rio Negro-Sopladora National Park revealed a striking new species of Hyloscirtus. The new species is easily diagnosed from all other congeners by its large body size (64.9 mm SVL in adult female); broad dermal fringes in fingers and toes; prepollex not projected into a prepollical spine and hidden under thenar tubercle; dorsum greyish-green, with paler-hued reticulum, yellow spots and black speckles; throat, venter, flanks and hidden surfaces of limbs golden-yellow with large black blotches and spots; fingers, toes and webbing yellow with black bars and spots; iris pale pink with black periphery. It is currently known only from its type locality, in the high montane forest on the southern slopes of the Cordillera Oriental of the Andes, southeastern Ecuador. The new species might be related to the H. larinopygion species group based on its morphology.

Automated summary

A new species of Hyloscirtus has been discovered in recent surveys in the Rio Negro-Sopladora National Park. This species is distinct from others due to its large body size, broad dermal fringes, and unique coloration patterns. It is currently only found in the high montane forest in southeastern Ecuador.