Two new species of hylid frogs, genus Osteocephalus, from Amazonian Ecuador

We describe two new species of treefrogs of the genus Osteocephalus from pr imary forests in northeastern Amazonian Ecuador. One is a small to medium-s ized species without or with only few flat dorsal tubercles in males and a large light subocular area. Tadpoles assigned to this species were found in a bromeliad and had eaten fertilized frog eggs, most likely provided by th e parents. The second species is small to medium, has a smooth dorsum both in males and females and no light subocular spot.