Lacanobia thalassina
species of insect
Lacanobia thalassina, the pale-shouldered brocade, is a moth of the family Noctuidae. It is found in Europe east across the Palearctic to the Russian Far East and Siberia.
Technical description and variation
The wingspan is 35–38 mm. The length of the forewings is 16–20 mm. Has no pale grey tints; the red-brown ground colour varying only to dark grey; the claviform (club-shaped) stigma is produced as a dark dash to outer line; upper stigmata pale with partial black outlines, a black basal streak with pale patch above it; hindwing pale fuscous, paler at base; the form achates Hbn. has the forewing uniform red brown; while humeralis Haw. is fuscous grey with the red tints absent; ab. nigrifusa nov. [Warren] is wholly suffused with black, the orbicular stigma and traces of outer and submarginal lines remaining pale grey.
Similar species
In Lacanobia suasa and Lacanobia w-latinum, the W sign of the wavy line extends to the fringes.
Begin with the source’s own compact description: “Lacanobia thalassina” is species of insect. The dossier treats that line as a proposition to test through Lacanobia, thalassina and species, not as a finished interpretation.
Why this record matters
The phrase “species of insect” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
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 Dec 19, 2024. The linked authority identifier is Q1309350. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Lacanobia thalassina” 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.