Nyctimystes obsoletus, the Simbang big-eyed tree frog, is a species of frog in the subfamily Pelodryadinae, endemic to Papua New Guinea. Its natural habitats are subtropical or tropical moist lowland forests and rivers. References obsoletus Amphibians of Papua New Guinea Endemic fauna of Papua New Guinea Amphibians described in 1900 Taxa named by Einar Lönnberg Taxonomy articles created by Polbot