Lacanobia thalassina

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.[1]

Lacanobia thalassina
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Noctuidae
Tribe:
Hadenini
Genus:
Lacanobia
Species:
L. thalassina
Binomial name
Lacanobia thalassina
(Hufnagel, 1766)

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

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.[2]

Biology

The moth flies in two generations from early May to September.

Larva green or reddish yellow, with two dark oblique stripes ou each segment, with two dark spots or blotches in front of them; lateral lines pale grey with red edges. The larvae feed on various deciduous trees and plants: Betula sp., Alnus incana, Salix sp., Polygonum spp., Chenopodium album, Delphinium sp., Berberis sp., Brassica spp., Rubus idaeus, Sorbus aucuparia, Pisum sativum.[3]

Notes
  1. ^ The flight season refers to Belgium and The Netherlands. This may vary in other parts of the range.

References
  1. Colour Atlas of Siberian Lepidoptera
  2. 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
  3. "Robinson, G. S., P. R. Ackery, I. J. Kitching, G. W. Beccaloni & L. M. Hernández, 2010. HOSTS - A Database of the World's Lepidopteran Hostplants. Natural History Museum, London".


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