What the heck is this??????

[trophytroutman]

This thing is on our fence and it crawls like a caterpillar and looks like a lizard head.

[GoldSpoonGeneral]

what the eff.....

[GoldSpoonGeneral]

google is my friend

http://www.backyardnature.net/yucatan/orangedg.htm good description...

i literally googled caterpillar with a lizard head

[Milkjug]

Yep, looks like a swallowtail (those big yellow and black butterflies) caterpillar. Probably done eating and looking for a place to cocoon up. You got citrus trees nearby?

[trophytroutman]

Got a lime plant on patio.

[trophytroutman]

Its the giant swallowtail.