The Least Yellow Underwing (Noctua interjecta)
is a moth
of the family Noctuoidea
. It is found in Europe
The wingspan is 31-36 mm. The length of the forewings is 14-17 mm. The moth flies in one generation from late June to August .
The larvae feed on various grasses and herbaceous plants such as meadowsweet and malva sylvestris.
- The flight season refers to Belgium and The Netherlands. This may vary in other parts of the range.