Photo by Bob Thomas, Pilenque, Costa Rica, February 1986.

Photo by Bob Thomas, Simla (Wm. Beebe Research Station), Trinidad, June 2001.Photo by Bob Thomas, Asa Wright Nature Centre, Trinidad, June 1988.

Paper wasps of a variety of species are abundant in the  tropics.  One needs to be cautious.  The nest on the leaf was on the hidden side of a leaf next to a major trail at the nature centre.