Help Id

[ESullivan]

Is the butterfly on the right a color phase of a Canadian Tiger Swallowtail?  Caught today near the Tomogonops River.

Thanks

[jim.edsall]

Yes this is a Tiger. I have never seen this before in this species but I have seen similar forms in other species. It is believed to be caused by the pupa being exposed to cold temperatures during  a critical developmental stage. Definitely save this specimen for mounting..jim

Jim Edsall
Check out my new website at http://jimedsall.com

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[Phil Schappert]

>Is the butterfly on the right a color phase of a Canadian Tiger
>Swallowtail? Caught today near the Tomogonops River.

Great find! It's not a colour phase, per se, but a melanistic
aberrant, not common with Papilio species but not that rare either.
See Mark Scriber's 2009 paper
(http://images.peabody.yale.edu/lepsoc/jls/2000s/2009/2009-63-2-118.pdf)
for more info.

What's most interesting about this one is the complete lack of blue
and the very large orange spot (which reminds me of some eastern
Asian Parides sp., relatives of Papilio, for example
http://upload.wikimedia.org/wikipedia/commons/7/7e/ParidesascaniusMale.JPG).

What I can say is you'll likely never see another one like it...ever!

Phil

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Phil Schappert, PhD

27 Clovis Ave.
Halifax, NS, B3P 1J3
902-460-8343 (cell)

philschappert.ca
imaginaturestudio.ca
imaginaturestudio.blogspot.ca
philschappert.com

"Just let imagination lead, reality will follow through..."
(Michael Hedges)

[ESullivan]

Thanks for the information, very interesting.  I knew it was different when I first saw it and was lucky enough to catch it.  I figured it was a CTST based on the location and flight time, but it was different enough to cast doubt.  Appreciate the help.