Rhyacia simulans, the dotted rustic, is a moth of the family Noctuidae. The species was first described by Johann Siegfried Hufnagel in 1766. It is found in most of Europe, south to Morocco, Algeria and Tunisia, east to Turkey, the Caucasus, Tomsk and Minusinsk.
The wingspan is 45–60 mm. It is like Epipsilia latens Hbn. but larger; the forewing paler, the stigmata with distinct pale and dark outlines. pyrophila Schiff. is ochreous grey; suffusa Tutt is darker, the forewing being blackish grey; —latens Stph. is unicolorous black, with still more intense markings.[1]
Adults are on wing from June to September.
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.
The larvae feed on Gramineae, Rumex and Taraxacum species.[2]