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Today I found this Giant Swallowtail caterpillar and it gave me the classic defensive posture so I thought I would share. That red thing is called an osmeterium and it helps the caterpillar to mimic a snake and hopefully scare a predator away. There is also a strong odor that permeates the air when it sticks its ''tongue'' out. Also noteworthy is the fact that this species is a southern dweller and is a rare visitor to the Montreal area so I was very lucky to spot it.
I have added another image showing the caterpillar attached to a twig and getting ready to become a chrysalis.
Spotted on Sep 16, 2013
Submitted on Sep 16, 2013
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