Arch line tension owl

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Arch line tension owl
Gray form of the arched tension owl (Herminia grisealis)

Gray form of the arched tension owl
( Herminia grisealis )

Systematics
Class : Insects (Insecta)
Order : Butterflies (Lepidoptera)
Family : Owl butterfly (Erebidae)
Subfamily : Herminiinae
Genre : Herminia
Type : Arch line tension owl
Scientific name
Herminia grisealis
( Denis & Schiffermüller , 1775)

Brown- yellow shape of the bow line tension owl

The arched tension owl ( Herminia grisealis , syn .: Zanclognatha nemoralis ), sometimes referred to as the sloe borer owl , is a butterfly ( moth ) from the family of owls (Erebidae).

features

butterfly

The wingspan of the moth is about 24 to 28 millimeters. The  forewing basic color varies from gray, from which the scientific name of the species is derived from the Latin language ( griseus = "gray"), to brown-yellow. The dark gray or dark brown inner transverse line ends straight at the front edge, the outer one shows a strong bulge directed towards the edge. The dark, elongated wavy line runs in an arc into the apex . The kidney defect can be recognized as a dark, thin, long, sickle-shaped line. There are two weak, dark transverse lines on the white-gray hind wings. The proboscis is well developed. The palps are very long and curved upwards in a sickle shape.

Caterpillar, pupa

Adult caterpillars are black-gray to yellow-brown in color. They show a black-brown topline, reddish segment incisions and black point warts.

The doll is red-brown and has six hook bristles on the cremaster .

Similar species

The southern arched tension owl ( Herminia tenuialis ) differs by the inner transverse line, which is sharply bent towards the root at the front edge, and the only weakly curved wavy line on the front wings.

Geographical distribution and occurrence

The species is widespread in Europe. The eastern extension extends to the Ussuri and Japan . It occurs in the Alps up to a height of 1300 meters and prefers to colonize deciduous and mixed forests, hedges and bushes as well as parks.

Way of life

The moths of the arched tension owl are crepuscular and nocturnal and fly in a first generation from April to June. A second generation occurs in climatically favorable areas, and can be found in August and September. They visit artificial light sources and occasionally bait . The caterpillars live polyphagous on a variety of different plants, for example on blackthorn ( Prunus spinosa ) as well as on hawthorn - ( Crataegus ), oak - ( Quercus ), elderberry - ( Sambucus ), dogwood - ( Cornus ), nettle - ( Urticaceae ) or Rubus species. The pupae overwinter.

Danger

The species occurs in Germany in all federal states and is not endangered according to the Red List of Endangered Species .

swell

Individual evidence

  1. ^ Arnold Spuler: The butterflies of Europe. Volume 2, E. Schweizerbart'sche Verlagbuchhandlung, Stuttgart 1910. (Reprint: Bauer, Keltern 1983, ISBN 3-88988-002-9 )
  2. ↑ a b c Walter Forster, Theodor A. Wohlfahrt: The butterflies of Central Europe. Volume 4: Owls. (Noctuidae). Franckh'sche Verlagshandlung, Stuttgart 1971, ISBN 3-440-03752-5 .
  3. ↑ a b c Günter Ebert (Ed.): The butterflies of Baden-Württemberg. Volume 5: Moth III. Ulmer Verlag, Stuttgart 1997, ISBN 3-8001-3481-0 .
  4. ↑ Arno Bergmann: The large butterflies of Central Germany. Volume 4/2: Owls. Distribution, forms and communities. Urania-Verlag, Jena 1954, DNB 450378381 .
  5. ↑ Federal Agency for Nature Conservation (Ed.): Red List of Endangered Animals in Germany. Landwirtschaftsverlag, Münster 1998, ISBN 3-89624-110-9 .

literature

Web links

Commons : Arch Line Tensioner Owl  - collection of images, videos, and audio files