Lesser broad-bordered yellow underwing
|Lesser broad-bordered yellow underwing|
Denis & Schiffermüller, 1775
The lesser broad-bordered yellow underwing or Langmaid's yellow underwing (Noctua janthina) is a moth of the family Noctuidae. It is distributed throughout southern and central Europe, and southern Sweden.
Like other members of its genus this species has bright orange-yellow hindwings but as the common name suggests the black sub-terminal bands are very broad and account for about half the area of the hindwings. The forewings are more cryptically marked but are generally more attractively marked than in its congenators, variegated in shades of buff and purplish-brown. The wingspan is 34–44 mm. This species can only be separated from Noctua janthe by examination of the genitalia  The adults fly at night from the latter half of July to August and are attracted to light and sugar.
The larva is brown with v-shaped markings along the back. It feeds on a wide variety of plants (see list below). The species overwinters as a larva.
Recorded food plants
- Arum – Cuckoo pint
- Crataegus – Hawthorn
- Hedera – Ivy
- Prunus – Blackthorn
- Salix – Willow
- Ulmus – Elm
- Urtica – Nettle
- http://www.mothscount.org/uploads/Difficult_species_guide_page_50.pdf Difficult Species Guide
- Information on Noctua janthina
- Chinery, Michael Collins Guide to the Insects of Britain and Western Europe 1986 (Reprinted 1991)
- Skinner, Bernard Colour Identification Guide to Moths of the British Isles 1984