Crombrugghia kollari Wikipedia
Crombrugghia kollari is a moth of the Pterophoridae family. It is found in Spain, Italy, France, Austria and Switzerland and has also been recorded from southern Russia and Turkey. It is an Alpine species.
It is a little larger than Crombrugghia tristis. It has a very characteristically grey-whitish colour with some specimens being almost white.
The larvae feed on the leaves of Hieracium amplexicaule. Larvae can be found from the beginning of May to the beginning of June.