Photo notes: The photos were taken along the Rupununi River in Guyana. Note that the bottom photo is of a different individual, photographed in the same area four days after the first photos were made.
The insects in the photos are consistent with Pseudomiopteryx guyanensis, as was their dense forest habitat, though it is not possible to be certain about genus or species. Many members of this family look quite similar. Determined by Julio Rivera, Royal Ontario Museum.
American Insects site