Euxoa obelisca
| Euxoa obelisca | |
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| File:Euxoa obelisca2.jpg | |
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E. obelisca
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| Euxoa obelisca Denis & Schiffermüller, 1775
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The Square-spot Dart (Euxoa obelisca) is a moth of the family Noctuidae. It is found in the Palearctic ecozone (Europe, Central Asia, North Africa Asia minor).
Technical Description and variation
- See glossary for terms used
Forewing purplish brown; costa pale to outer line: cell dark brown; stigmata large, greyish ochreous: the claviform dark; hindwing in male white, with narrow grey shade along margin, in female more or less grey-tinged throughout.- in ab. fictilis Hbn. the forewing is more variegated, the submarginal line preceded by a row of distinct black teeth; - ab. ruris Hbn. , larger than typical, reddish grey or reddish brown, with or without the pale costa: stigmata large and pale: - ab. villiersii Guen. is also larger than typical; forewing ochreous grey with costa and both stigmata whitish, darker in the female; — ab. plectoides Guen. the same size as type, forewing with more acute apex, deep shining violet brown, with traces of subterminal only: costa and stigmata (which are small) pale testaceous; the orbicular somewhat angulated, the reniform constricted in middle: claviform obsolete: the cell deep black; hindwing very dark; described from a female only from Lapland; omitted by Staudinger, but probably a distinct species: a very distinct form from the Urals, which may be called ab. carbonis nov.[Warren] has the ground colour purplish black, with the costal streak and upper stigmata pale and the cell deep black: all the lines indistinct: several examples of both sexes sent from Uralsk by M. Bartel.[1]
Biology
The moth flies from July to October depending on the location.
The larvae feed on various herbaceous plants, such as Helianthemum nummularium and Galium species.[2]
References
External links
- Lepiforum
- Funet Taxonomy
- Fauna Europaea
- waarneming.nl (Dutch)
- Vlindernet (Dutch)
- Square-spot Dart at UKmoths
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