Libellule
I love that word and I love your red libellule and Madame, she, herself.
We have the odd red and beautiful blue dragonflies in the garden in summer. I love them. Of course you know they are neither dragon-ish nor fly-ish in the negative senses of those words.
And those gossamer wings....
I actually squealed a bit when my Google search result for "French word for dragonfly" yielded that result, @fionasfavourites! And as is usual for our amazing rental home, we are entirely spoiled by how many dragonflies come a calling. Much appreciate your appreciation, dear lady! 😊 🤗