Probably color variation of Hyles lineata

what’s this?
We discovered this caterpillar on our 4 o’clocks about a week ago and they have stripped the foliage. We have had those flowers for four summers and have never seen these caterpillars. Can you identify them for us? We live in Fallon, Nevada
Carleen Tucker

Hi Carleen,
We believe this to be a color variation of the highly variable Striped Morning Sphinx Caterpillar, Hyles lineata.

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