Hi there! Do you have any clue who this lil dude is? I’m in Fort Collins, Colorado and I’ve been trying to identify him but I can’t find another one that looks like him anywhere.

I sure doooooooooooo it’s a leafy spurge hawkmoth caterpillar. Their coloring can vary pretty widely from individual to individual and from instar to instar. The adults are very lovely as well! Check out this dude:

Photo by paulcools

Thanks for submitting this long friend!