Mythimna vitellina, the delicate, is a moth of the family Noctuidae.

It is also found far less commonly further north in Europe.

Forewing pale yellowish ochreous, typically strongly flushed with rufous; veins finely rufous; lines fine, more or less angulated, the inner and outer approximated on inner margin; stigmata indistinct: the orbicular slight, often obsolete; reniform rufous, with a dark spot in lower end; hindwing ochreous white, greyer in female, the veins often fuscous; the pale, less highly coloured, specimens, with whiter hindwings, ab.

pallida nov. [Warren] which seem to be comparatively rare in western Europe, though occurring in Switzerland and the Canaries, are the usual form in Syria and Turkestan.

Larva pale tannish-peach colour; dorsal and subdorsal lines white, with darker edges; spiracles black on a pale yellow lateral line; head brown with black markings.