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Photo#189799
What kind of Tiger Swallowtail? - Papilio canadensis - male

What kind of Tiger Swallowtail? - Papilio canadensis - Male
Devens, Worcester County, Massachusetts, USA
June 11, 2008

Images of this individual: tag all
What kind of Tiger Swallowtail? - Papilio canadensis - male What kind of Tiger Swallowtail? - Papilio canadensis - male What kind of Tiger Swallowtail? - Papilio canadensis - male

Canadian Tiger Swallowtail
Best clue showing on this one is the run together band of yellow along the outer edge of the underside of the front wings (separate spots on Eastern Tiger). The Canadian and Eastern are very similar, but this one is more northern. You are in an area where you might posibly see both, and sometimes they apparently hybridize.

Other differences seen in the Canadian Tiger Swallowtail include narrower more pointed wings that are proportionately smaller in comparison to the body.

Moved from Butterflies.

My Best Bet
My best bet would be that this is an Eastern Tiger Swallowtail - Papilio glaucus. Compare:



And, looking at the middle-sized picture you uploaded, it appears that this specimen is a male. It doesn't seem to have the tell-tale dusting of color toward the inside back of the wings like females do.

 
Wow!
Thanks!

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