Pansy Butterfly

There are no Pansy Butterfly in the US, you have some Junonia sp. indeed, these are the Buckeye Butterflies. This is from the same family Nymphalidae and looks like being a Polygonia sp., Comma or Question Mark, but yours should be a Comma Butterfly. Look at the white "C" or comma on the hindwing. I am not sure if we can get down to species level from only a ventral view. Another picture certainly would help much. The hindwings in these Commas are very veriable within the same genus/species. Range could also be important for an ID. Here are some of the Polygonia sp. to check: http://bugguide.net/node/view/297/bgpage