The Common Spurwing, Antigonus erosus (my gallery link) is like several species with the top and bottom sides of the wings being totally different which you can see in this set of just 3 photos . . .
Common Spurwing
Ugly Brown Butterfly?
That is what some might call this, one of many similar to him. He is a Common Spurwing, Antigonus erosus (linked to my gallery with 4 pix). There are many other similar “Spreadwings” or other categories. Here’s just one shot from my garden. Go to the above gallery for more of this one.
And he is a tiny one! Maybe one inch wide.
¡Pura Vida!