The Baltimore Checkerspot is one a most distinctive butterfly species and is unlikely to be confused with any other butterfly. It is always a pleasure to see fresh Baltimore Checkerspots flying through the wet meadows where their primary host plant Turtlehead (Chelone glabra) is found. Baltimore Checkerspots are fairly easy to coax onto your hand from a good nectar source, and I am always amazed at how small they appear up close as compared to seeing them flying.
A black butterfly with a row of orange spots on the margins of both wings, several rows of white submarginal spots, and a few orange and white spots nearer the body. Open wet meadows where its host plant turtlehead grows, and adjacent uplands where it may often be found nectaring on black-eyed susan, milkweeds, thistles, or other nectar sources. The turtlehead generally blooms only after the Baltimore Checkerspot is finished flying, which may complicate your search.