n24_w1150. Free illustration for personal and commercial use. about 2 years 0 Blue triangle swallowtail butterfly. Graphium sarpedon [as Chlorisses sarpedon] Zoological illustrations by WM. Swainson (1831-1832). Free illustration for personal and commercial use. over 2 years 0 Blue triangle purple triangle blue. Free illustration for personal and commercial use. over 3 years 0