The Butterflies and Moths dot com doesn’t even have this species included on their website yet (I’ve requested it!) and otherwise online I find it reported from Mexico, Guatemala and Nicaragua, so my photo may be the first reported of this species from Costa Rica (IF my identity is correct) 
and this is not the first time for me to add a new species on that website! I’ve found online two common names and two scientific names for what seems to be the same species of butterfly . . .
COMMON NAMES: Yellow-haired Skipper and Yellow-haired Pyramid-Skipper
SCIENTIFIC NAMES: Typhedanus cajeta cajeta and Cogia cajeta cajeta
This is not terribly unusual with so many species of butterflies and new ones being discovered or named every year. And I just wait to see what my supervisor at Butterflies and Moths dot com decides to do with it.
¡Pura Vida!