Subject: Eastern Tiger Swallowtail
Location: Perinton, NY
August 15, 2016 6:42 pm
Hi! Here are some pics of an Eastern Tiger Swallowtail on the right-of-way behind our home. I believe it’s a male, as I didn’t see any blue on the hind wings. We’ve had an amazing variety of butterflies here this year, more than in years past. Enjoy!
You surely are providing us with some wonderful eastern butterfly images. Because of your location, we cannot say for certain that this is an Eastern Tiger Swallowtail, Papilio glaucus glaucus, since the range of the Canadian Tiger Swallowtail, Papilio canadensis, can be as far south as Pennsylvania. The two species look very similar and this BugGuide differentiation and description of the Canadian Tiger Swallowtail “adult: inner margin of hindwing has wide black stripe (whereas the otherwise similar – though larger – Eastern Tiger Swallowtail has a thin black stripe in that area)” seems vague, as does the comparison of images on the Canadian Biodiversity Information Facility site. We do agree it is a male. Perhaps one of our readers will write in with a more concrete species call than we are able to provide.
Thanks to a comment from Cesar Crash, we will concur that this is an Eastern Tiger Swallowtail.