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Lesser broad-bordered yellow underwing

species of insect

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 31, 2026
Entity authorityQ1356694
Source-derived summary

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 (1.3–1.7 in). This species can only be separated from Noctua janthe and the disputed Noctua tertia by examination of the genitalia. See Townsend et al.

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).

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The public source identifies “Lesser broad-bordered yellow underwing” as species of insect. This brief keeps that definition visible, then builds a research path around Lesser, broad-bordered and yellow.

Editorial reviewA sound reference starting point where classification, measurement and the date of the underlying evidence remain visible. The current 158-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with Lesser, broad-bordered and yellow providing the first useful test.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Jul 31, 2026. The linked authority identifier is Q1356694. None of the 0 selected statements returned an explicit reference.

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This entry incorporates text from Lesser broad-bordered yellow underwing” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.