Noctua interjecta

Noctua interjecta, the least yellow underwing, is a moth of the family Noctuoidea. It is found in Europe.

Comparison of 1, 2, 5, 6. broad-bordered yellow underwing (Noctua fimbriata) 3. lesser broad-bordered yellow underwing (Noctua janthe) 4. least yellow underwing (Noctua interjecta)

Least yellow underwing
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Noctuidae
Genus: Noctua
Species:
N. interjecta
Binomial name
Noctua interjecta
Hübner, 1803

Technical description and variation
For a key to the terms used, see Glossary of entomology terms.

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.[1]

Biology

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.[2]

Habitat in France

Subspecies
  • Noctua interjecta interjecta (Alps, southern France, northern and south-eastern Spain, northern Portugal, Italy, Bulgaria, northern Greece and Romania)
  • Noctua interjecta caliginosa (Schawerda, 1919) (southern and central England, Wales, southern Ireland, northern France, Belgium, Luxemburg, Netherlands, northern Germany, Denmark, southern Sweden, Czech Republic and Austria)

Notes
  1. ^ The flight season refers to Belgium and the Netherlands. This may vary in other parts of the range.
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References
  1. Seitz, A. Ed., 1914 Die Großschmetterlinge der Erde, Verlag Alfred Kernen, Stuttgart Band 3: Abt. 1, Die Großschmetterlinge des palaearktischen Faunengebietes, Die palaearktischen eulenartigen Nachtfalter, 1914
  2. "Robinson, G.S., P.R. Ackery, I.J. Kitching, G.W. Beccaloni, & L.M. Hernández. (2010). HOSTS – A Database of the World's Lepidopteran Hostplants. Natural History Museum, London".


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