Mate competition in fireflies. Here, a small male (left) mates with a female while a large male attempts unsuccessfully to displace his rival. Austin, Texas, USA.
A 25 minute night exposure in a restored Illinois prairie reveals the signals of several different species of fireflies, each with a unique pattern. Homer Lake, Illinois, USA.
A 10 minute night exposure in a restored Illinois prairie reveals the signals of several different species of fireflies, each with a unique pattern attractive to females of their respective species. Homer Lake, Illinois, USA.