Satyrodes eurydice, the eyed brown or marsh eyed brown, is a species of Satyrinae butterfly that is native to North America.

There are two subspecies—the nominate species, the eyed brown (S. e. eurydice), and the smokey eyed brown (S. e. fumosa) (Leussler, 1916).

Wingspan: 38 to 48 mm.

They have one brood with a flight period from late June through August.

Larvae feed on sedges (Carex) in particular C. lacustris, C. atherodes, C. rostrata, and C. stricta.

...