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I'm with Jaakko.
It is too red for Carcelia, so it must be Winthemia.
Manyspecies of Winthemia specialize in Sphingidae, so that is OK.
We'd really need bigger pics to give a proper ID.
I'd love to see the tibia 2, thorax in lateral view, and abdomen dorsally if possible.

Very interesting !

Theo