Oleander Hawkmoth Caterpillar

5825   Hi there – some relatives are currently in Lourmarin in the South of France and the came across this little creature.   Just wondering if you might know what it is – or how I might find out. Thanks so much, Kathy

This is a mature caterpillar of an oleander hawkmoth, Daphnis nerii (Lepidoptera: Sphingidae); see Daphnis nerii – Wikipedia
Ed Saugstad, retired entomologist; Sinks Grove, WV.