Brown Argus

Wingspan 20-28 mm. Flies in 2 generationsgeneration A butterfly flies in 2 generations when the year’s first newly emerged adults (1st generation) bring a new “brood” (“children”) capable of flight into the world in the same year. With 3 generations there are “grandchildren” as well in the same year. The number of generations determines in how many months of the year we can see the butterfly.× from May to August. In warm summers a 3rd generation may occur. Best recognised by the chocolate-brown upperside. Wanders a great deal and prefers places where the caterpillar’s foodplants, crane’s-bills and stork’s-bills, grow in abundance. On the dike a few wandering individuals are seen in smaller numbers, taking nectar from many different flowers. The caterpillar overwinters and pupates in spring.