I believe this is a spicebush swallowtail, but websites differ on their identifications. Could be a
I believe this is a spicebush swallowtail, but websites differ on their identifications. Could be a black swallowtail or a black-phase tiger swallowtail according to some. -- source link
#spicebush swallowtail#papilio troilus#butterflies#pennsylvania