| Least yellow underwing | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Noctuidae |
| Genus: | Noctua |
| Species: | N. interjecta |
| Binomial name | |
|
Noctua interjecta Hübner, 1803 |
|
Noctua interjecta, the least yellow underwing, 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. Forewing greyish rufous, sometimes darkened with fuscous; lines and stigmata a little darker, often very obscure; hindwing orange yellow with a broad marginal black border; costal and inner margins, a submedian streak from base, and the cell blackish; fringe yellow.
The moth flies in one generation from late June to August.
Larva pale ochreous with black dots; the lines pale, with darker edges. The larvae feed on various grasses and herbaceous plants such as meadowsweet and Malva sylvestris.