According to Michel Laguerre, an expert on Neotropical Arctiinae butterflies, this is likely Theages flavicaput but it it should be noted that it is difficult to make a 100% identification from just a photo.

1st photo: El Cairo area, Valle del Cauca, Colombia, 8 June 2016
2nd photo: El Dorado Lodge area, Sierra Nevada de Santa Marta, Colombia, 26 October 2014