Butterfly

If by Harmonia Ringlet you mean Hermeuptychia harmonia then I don't think that is the correct ID - that butterfly looks quite different and doesn't appear to be found in Brazil. Secondly, I'm not sure this is a particularly worn specimen - it appears quite fresh to me. Thrdly, these are a tricky group: " There are about 400 described members of the subtribe Euptychiina, which includes all the neotropical "ringlet" butterflies. Until fairly recently almost all were included in the genus Euptychia, but the revisions by Forster ( 1964 ) and Lamas ( 2004 ) divide this "convenience" genus into a number of smaller genera, including Caeruleuptychia, Cissia, Magneuptychia, Cepheuptychia, Chloreuptychia and Euptychioides. The "Euptychia" ringlets are notoriously difficult to identify. The ground colour, wingspan, width of the median bands, and size of ocelli vary within each species according to sex, habitat, location, altitude and seasonal climatic conditions." http://www.learnaboutbutterflies.com/Andes%20-%20Hermeuptychia%20harmonia.htm Perhapos a Grimon Satyr Paryphthimoides grimon? See: http://bultaco.neotropicalbutterflies.com/Site%20Revision/Pages/Nymphalidae_Pages/Nymphalid_Thumbnail_Pages/Satyrinae_Satyrini_euptychiina_Thumbnails.html for this and other possibilities

Never seen butterfly mustache.

Nymphalide, Satyrinae, Euptychiina (subtribe).