A. pronuba, L. 48-56 mm. Antennae in male ciliated. Forewings ochreous-brown to dark fuscous, sometimes reddish tinged, sometimes partly irrorated with grey-whitish, especially towards costa anteriorly; lines often paler, dark-edged, sometimes faint, subterminal preceded on costa by a blackish mark orbicular and reniform more or less pale-edged, outlined with darker, reniform partly marked with dark grey. Hindwings ochreous-orange; a blackish terminal band. Larva pale green to dull brown; dorsal line pale; subdorsal series of blackish longitudinal marks on 5-12; a pale line beneath these; subspiracular pale; head light brown, dark-marked. See
Noctua orbona, the lunar yellow underwing and
Noctua comes, lesser yellow underwing for differences between these species and
pronuba. •
The flight season refers to the British Isles. This may vary in other parts of the range. ==Recorded food plants==