Rhyacia simulans, the dotted rustic, is a moth of the family Noctuidae.

It is found in most of Europe, south to Morocco, Algeria and Tunisia, east to Turkey, the Caucasus, Tomsk and Minusinsk.

but larger; the forewing paler, the stigmata with distinct pale and dark outlines.

The forewing is pale grey or greyish-brown with small, black-edged kidney and ring markings and more or less distinct, double, dark intermediate lines that delimit the central field of the wing.

Larva dark brown; the subdorsal area brownish-tannish peach; dorsal line thin, pale, edged with black; a row of dorsal V-shaped marks; an interrupted white lateral stripe.