Orthosia gracilis

Orthosia gracilis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Noctuidae
Tribe: Orthosiini
Genus: Orthosia
Species: O. gracilis
Binomial name
Orthosia gracilis
(Denis & Schiffermüller, 1775)
Synonyms
  • Phalaena (Noctua) gracilis [Schiffermüller], 1775
  • Phalaena (Noctua) lepida Brahm, 1791
  • Bombyx sparsus Haworth, 1803

Orthosia gracilis, the powdered Quaker, is a moth of the Noctuidae family. It is found in all of Europe except the extreme north and south, then east across the Palearctic to Northern Asia and Central Asia. O. g. pallidior (Staudinger, 1888) is described from Xinjiang in China.

Caterpillar

Technical description and variation

For a key to the terms used, see Glossary of entomology terms.

The wingspan is 35–40 mm. Forewing in male pale grey or ochreous grey, in female dark grey, generally more or less irrorated with dark grey; orbicular and reniform stigmata with pale outlines, filled up with grey, the lower half of reniform dark grey; outer line marked by black dots on veins, the inner mostly obsolete; submarginal line ochreous or rufous, sometimes preceded by a dark shade; hindwing in male whitish, becoming grey towards termen, and blackish immediately before the pale fringe, in female wholly grey; - pallida Stph. is a whitish form with hardly any dusting; - in rosea Tutt the ground colour is flesh coloured; - rufescens Cockll is redbrown; - the Japanese form ella Btlr.[now a full species Orthosia ella] differs only in being more strongly marked, sometimes with a redbrown flush. [1] [2]

Biology

Adults are on wing from April to May.

Larva bluish green; dorsal and subdorsallines whitish; spiracular line white, black-edged above; spiracles white with black rings. The larvae feed on Myrica gale and Salix species (including Salix repens and Salix caprea). Other recorded food plants include Thalictrum flavum, Thalictrum aquilegiifolium, Ribes nigrum, Ribes rubrum, Rubus idaeus, Filipendula ulmaria, Malus domestica, Cotoneaster, Prunus cerasus, Prunus padus, Trifolium pratense, Lysimachia vulgaris, Chrysanthemum vulgare, Artemisia absinthium, Artemisia vulgaris, Cirsium arvense and Taraxacum vulgare.[3]

References

  1. ↑ 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
  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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