Document Type

Peer-Review Article


In order to determine the function of the white wing stigma in Calopteryx mandata, males and females were marked or left unaltered, pinned onto a stick and presented to free ranging males. Male responses to females with blackened stigmas were minimal whereas most males responded to unaltered females, unaltered males, and altered males. It is suggested that presence of the white stigma, in combination with wing transparency, is important for male discrimination between the sexes.

Included in

Entomology Commons