There are 85 known species of Adelpha, all but two of which are confined to Central and South America. The butterflies are characterised by having a distinctive blackish marbled pattern overlaid on a brown ground colour; and by the presence of a broad orange or white band on the forewings. The hindwings of most species have a white median band.
This is the subspecies Adelpha ethelda eponina.
David Geale, an expert on neotropical butterflies and particularly on the species in Tatamá, helped me identifying this butterfly. I was very fortunate to meet David at the Montezuma Lodge in Tatamá National Park at the time we were visiting.

Top: Montezuma Lodge area, Parque Nacional Tatamá, Risaraldas, Colombia, 28 June 2015
Left & Middle: El Cairo area, Valle del Cauca, Colombia, 10 June 2016