Female - Point Pelee National Park Leamington, ON 12/08/2011
There is considerable overlap in the range of this species with that of the Canadian Tiger Swallowtail. It seems to be appearing in Ottawa more often recently. The resident Canadian Tiger Swallowtail is reported to have only a single spring brood in the Ottawa-Gatineau region. If a Tiger Swallowtail is seen later in the summer in our area, it is likely a second-brood Eastern Tiger. Note that the female at bottom right may be a bit aberrant in the extent of the black on its wings. I believe the one at bottom left is more typical.