This denizen of salt marshes is related to the Salt Marsh Skipper, which has a white streak instead of Obscure's three white dots (one single, two paired). Obscure Skipper ranges along the immediate coast from the West Indies and Florida to Texas and on to South America.

Freeport, Grand Bahama, The Bahamas 6/21/2010.

Big Pine Key, Monroe Co., FL 6/26/2010.

Bahia Honda State Park, Monroe Co., FL 6/25/2010.

Freeport, Grand Bahama, The Bahamas 6/20/2010.

Freeport, Grand Bahama, The Bahamas 6/20/2010.

Loma Alta, Cameron Co., TX 10/14/04.

I don't know about you, but I've seen plenty of butterflies that are a lot more obscure than this tiny, but distinctive, skipper.