An NJSEA staffer took this photo yesterday of a butterfly hanging out near the Science Center at DeKorte Park in Lyndhurst. She asked what type of butterfly it is. The answer to her question is a question, more specically it’s a Question Mark butterfly, the common name for the Polygonia interrogationis species. The moniker  comes from the silver mark on the underside of the hindwing, which broken into two parts, a curved line and a dot, creating a ?-shaped mark.