In France, Attalus sericans seems to be only known in Corsica and still not actually recorded in the French mainland. Its occurrence at Espira-de-l'Agly should be of great interest, this species being also present in Spain.
Up to there failed to find new ones to sample in order to confirm this. The observation of a Malachiid larva in recent days makes me hoping I'll be able to retrieve them this spring, so cross fingers...