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Project Noah Nature School
Green With some stripes, a stinger on its rear, aggressive, moves fast
Forrest, grasslands
Spotted on Aug 14, 2012
Submitted on Aug 15, 2012
5 Comments
The horn is completely harmless, and actually fairly flexible. It has the feeling of a horn-like fingernail.
I have to disagree with both previous suggestions. To make a clear suggestion, one would need a photo of the side of the caterpillar. It is not the Tomato hornworm because it does not have a blue horn. The Great Ash Sphinx caterpillar doesn't have black diagonal lines. The lines are white and much more subtle. Do you have any other photos?
Great Ash Sphinx moth caterpillar
Are they venomous ?
Yes it is a tomato caterpillar and what gives it away is the horn.