Photedes extrema, the concolorous, is a moth of the family Noctuidae.

It is found in most of Europe (except Iceland, Ireland, the Iberian Peninsula, Norway, Italy, Bulgaria and Greece).

Forewing bone white slightly dusted with grey, with no markings except the outer, much curved, row of dark vein spots and some black terminal spots; hindwing pale grey; in shape of forewing agreeing with fluxa Tr.

Whereas Chortodes fluxa and Denticucullus pygmina appear only in August and September respectively.

The larvae feed internally on the stems of Calamagrostis species.