Diachrysia chryson

Diachrysia chryson, the scarce burnished brass, is a moth of the family Noctuidae. The species was first described by Eugen Johann Christoph Esper in 1789. It is found in central and southern Europe (including the southern part of the British Isles), Asia Minor across the Palearctic to Japan.

Diachrysia chryson
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Noctuidae
Genus: Diachrysia
Species:
D. chryson
Binomial name
Diachrysia chryson
(Esper, 1789)
Synonyms
  • Plusia chryson
  • Phytometra chryson
  • Autographa chryson
  • Phalaena chryson
  • Phalaena aerifera

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

P.chryson Esp. Forewing brownish fuscous tinged with purple: lines dark brown, inconspicuous; inner line waved, oblique inwards; median line visible only at costa; a large subquadrate shining brassy blotch beyond cell between veins 7 and 3, the space between it and inner margin suffused with deep golden brown, both traversed by the fine outer line, which becomes lustrous towards inner margin ; submarginal line very obscure, waved, limiting the brassy and brown patches; hindwing pale bronzy fuscous, darker towards termen. Larva green; dorsal line darker green, white-edged; some oblique whitish lateral stripes; spiracles white.[1] The wingspan is 44–54 mm.

Biology

The moth flies from July to August depending on the location.

The larvae feed on Eupatorium cannabinum.

Subspecies

There are three recognised subspecies:

  • Diachrysia chryson chryson
  • Diachrysia chryson pales
  • Diachrysia chryson deltaica
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References
  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.
  • Kimber, Ian. "73.011 BF2435 Scarce Burnished Brass Diachrysia chryson (Esper, 1798)". UKMoths. Retrieved 19 October 2019.
  • Fauna Europaea
  • Lepiforum e.V.
  • Schmetterlinge-Deutschlands.de
  • De Vlinderstichting (in Dutch)


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