Female butterflies close their wings to avoid courtship by unwanted males and to indicate that they are "not available," according to a study published in the latest issue of the journal Ethology .
The females of the Lycaenidae species, known as lychens, thus hide their striking colored wings to go unnoticed by the males of their species, concluded researchers from the Kurume Institute of Technology in Fukuoka (Japan). This is because these insects only mate once , so closing their wings serves as a mechanism to avoid sexual harassment .
However, "virgin" butterflies do not follow the same behavior, but keep their wings open to attract their counterparts of the opposite sex and mate.





