Ou bien un fantôme. I saw it on the white tile over our kitchen sink a couple of mornings ago.
When the weather is warm overnight, we leave windows open. We don't have screens. Interesting creatures come inside.
Do you think it's a moth? It has a wingspan of about one inch — less than three centimeters.
There's a shelf over the sink with halogen lighting under it. Makes for good batman-type shadows.