One kind of female butterfly mates only once in its life -- and then closes its wings to avoid “harassment” when pursued by persistent and unwanted males, a Japanese researcher said.Observations of the Small Copper Butterfly, a colorful orange and black butterfly, showed that some females closed their wings when males flew by, but only when they were males of their own species, said Jun-Ya Ide, an associate professor at Kurume Institute of Technology in Fukuoka, western Japan.
