
Spring Rainfrog, La Isla Escondida, Colombia
A beautiful and endangered species of rain frog, found during a night tour. Wikipedia mentions it is endemic to Ecuador. This is possibly inaccurate, if you consider how close to the Ecuadorian border we are (see geotag).
Or, I could be wrong regarding the species, so will double check it with an expert. My ID is based mostly on this reference:
https://www.flickr.com/photos/andreaskay/10146963383/in/album-72157629067323414/

''Pristimantis crenunguis'' is a species of frog in the family Craugastoridae. It is endemic to Ecuador. Its natural habitats are tropical moist lowland forests, moist montane forests, and rivers. It is threatened by habitat loss.
comments (6)
Yours does look pretty much like P. crenunguis, but lots of Pristimantis look very similar, so that's not enough to allow much confidence. And while your location is very close to the Ecuador border, the known range of P. crenunguis is not that close to the Colombia border, at least if the map on the IUCN Red List site is very accurate (https://www.iucnredlist.org/species/56530/11493259).
You might have already done this, but it's worth glancing through the list of Pristimantis known from Colombia in Amphibiaweb (https://amphibiaweb.org/cgi/amphib_query?max=200&orderbyaw=Genus%2Bspecies&include_synonymies=Yes&show_photos=Yes&where-genus=Pristimantis&rel-isocc=occurs+in&where-isocc=Colombia), to see if any of them catch your eye as potential matches. There are a bunch without photos, but most of them do have photos. Posted 6 years ago
Currently, the set also contains frogs from the previous two years, many you already had looked at, but this list will grow with this year's findings, slowly but surely. Posted 6 years ago, modified 6 years ago