Mike Powell

Yesterday I went on a hike at Prince William Forest Park, the largest protected natural area in the Washington D.C. area at over 13,000 acres (53 square kilometers), that is located about 27 miles (43 km) from my home. Unlike the wildlife refuge that I usually visit, which is on a coastal plain, Prince William Forest Park, as its name suggests, is heavily wooded and it is quite hilly. I love to walk along the many creeks and streams that crisscross the park—the sound of the flowing water always has a therapeutic effect on me.

I was thrilled to spot this beautiful Question Mark butterfly (Polygonia interrogationis) as it perched on some leaves in a marshy area adjacent to one of the creeks. I could not tell for sure, but it looked like this butterfly was sipping water, possibly gathering nutrients from the soil. Question Mark butterflies and their punctuation “cousins,” the Eastern Commas, overwinter as adults, so they are among the earliest appearing butterflies in the spring.

Question Mark and Eastern Comma butterflies are quite similar in appearance. When the wings are fully open, as in the photo below, you can see a brown dash near the top of the upper wings that is not present on the wings of Eastern Comma butterflies.

© Michael Q. Powell. All rights reserved.