Abstract
Blue-green coloration in larval integument and adult wing of Graphium sarpedon and some pigments responsible for the coloration were investigated in various light conditions. When larvae were reared under high intensity (5,000lux), the integument became green in color while it was yellow when the larvae were reared in darkness. The degree of green coloration depended on the intensity and period of irradiation. Blue-green coloration of the band region on the adult wing was also induced by light irradiation during adult development. Without irradiation, color of the band region was pale-yellow. In the larval integument as well as the adult wing of light-irradiated animals, blue pigment was found as a form of protein binding, and it seems to be sarpedobilin, which has been known as a kind of neopterobilin. These observations strongly suggest that light stimulates the accumulation of sarpedobilin in each tissue of G. sarpedon.
