Polyommatus humedasae - Piedmont anomalous Blue - Aosta Esparcetteblauwtje - Aosta Bläuling
The uppersides of both sexes are chocolate-brown with dark fringes and the underside is greyish brown. Both sexes have a black mark at the end of the cell in the forewing. This species is endemic to the Aosta valley in Italy. Flight from July to August in one brood in flower rich warm grassland from 800 to 1600 m. The larval foodplants are common sainfoin (onobrychis viciifolia) and mountain sainfoin (onobrychis montana).