According to Auke Hielkema, founder and administrator at Guianas Nature Forum (GNS), this is a spittle bug (or froghopper) in the Cercopidae family.

I think it is Sphenorhina nigricephala but I am not sure.

Old Buenavista Road, Anchicaya area, Valle del Cauca, Colombia, 13 June 2016