Cosmia diffinis, the white-spotted pinion, is a moth of the family Noctuidae The species was first described by Carl Linnaeus in 1767. It is found in central and southern Europe, to the north it is found up to central England and the southern parts of the Netherlands. There is a disjunct population in Gotland. To the south, it is found down to Spain, Italy, Russia, northern Greece and Bulgaria. In the east, it is found as far as Lithuania and the Black Sea.

Cosmia diffinis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Noctuidae
Genus: Cosmia
Species:
C. diffinis
Binomial name
Cosmia diffinis
(Linnaeus, 1767)
Synonyms
  • Phalaena (Noctua) diffinis Linnaeus, 1767

Technical description and variation

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C. diffinis L. (47 e). Forewing rich redbrown on a pinkish grey ground; distinguished from the other [Cosmia] species by the lines starting from broad white costal blotches, not narrow streaks; the hindwing paler, more olive brown, than in affinis; — ab. confinis H. Schaff. (47 e) has the pinkish ground colour predominant, the shading pale golden brown, the hindwing sometimes yellowish with dark outline and submarginal shade; on the contrary the ab. affinis Hbn. (47 e) has the deep purple tints intensified and darker, the insect being slightly smaller. Larva like that of affinis.[1] The wingspan is 29–35 mm.

 
4, 4a larvae after final moult

Biology

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Adults are on wing from June to August in one generation.

The larvae feed on united leaves of elms.

References

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  1. ^ Warren. W. in 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.   This article incorporates text from this source, which is in the public domain.
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  • White-spotted Pinion on UKMoths
  • Fauna Europaea
  • Savela, Markku. "Cosmia diffinis (Linnaeus, 1767)". Lepidoptera and Some Other Life Forms. Retrieved May 9, 2019.
  • Lepiforum e.V.
  • Schmetterlinge-Deutschlands.de Archived 2011-10-05 at the Wayback Machine