Eastern Tiger Swallowtail

This is a common, large swallowtail butterfly of eastern North America. The male is always yellow with black striping on the wings, but females may have either similar coloring or a black phase--both of which are shown above. Wingspan is variable depending upon location and gender (southern specimens are larger and females are larger than males) but are about 8 to 14 cm (3.1 to 5.5 in).