From late summer to the first hard frost, spotted lanternflies are in their adult stage and easiest to identify. Adults are roughly one inch long. Their folded wings are gray to brown with black spots. Open wings reveal a yellow and black abdomen and bright red hind wings with black spots transitioning to black and white bands at the edge. Female spotted lanternfly lay egg masses in the fall, which resemble old chewing gum, with a gray, waxy, putty-like coating.