Knuckle-leaf owl

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Knuckle-leaf owl
Polia bombycina (9168225479) .jpg

Common pick owl ( Polia bombycina )

Systematics
Order : Butterflies (Lepidoptera)
Superfamily : Noctuoidea
Family : Owl butterfly (Noctuidae)
Subfamily : Hadeninae
Genre : Polia
Type : Knuckle-leaf owl
Scientific name
Polia bombycina
( Hufnagel , 1766)

The rest of the leaf owl ( Polia bombycina ), also known as the rest of the garden owl , is a butterfly ( moth ) from the family of the owl butterfly (Noctuidae).

features

butterfly

The wingspan of the moth is 37 to 48 millimeters. The basic color of the upper forewing is pale gray-brown to reddish brown. Cone, kidney and ring blemishes are each outlined in a light dark brown. Both the inner and the outer transverse line are double, but mostly thin and indistinct. The dark brown wavy line is curved and ends in the tornus in one or two dark V-shaped arrow spots. The hind wings without drawing show a gray-brown color.

Egg, caterpillar, pupa

The egg has a hemispherical shape and initially a light yellow color, which later turns brown. It is covered with strong ribs on the entire surface. Adult caterpillars are light brown, purple-brown or gray-green in color and have dark stripes. In addition to the light back line, some dark slashes can be seen. The side lines are whitish, the head a red-brown color. The chrysalis has an elongated shape, a black-brown color and a shovel-shaped cremaster that has two end spines and two bristles on each side.

Similar species

The similar birch leaf owl ( Polia hepatica ) differs in that the drawing elements are usually more distinctive and rich in contrast. The main distinguishing feature is the lack of V-shaped arrow spots at the end of the wavy line on the tornus.

Distribution, subspecies and habitat

The species is widespread in the temperate climates of Europe and Asia to the Pacific Ocean , but is absent in Fennoscandinavia north of the 64th parallel . In the Alps it rises to over 2000 meters. The main habitat are mixed pine forests, light forests, forest edges, bushy heaths and parklands. In addition to the nominate form Polia bombycina bombycina , which occurs in Europe , four other subspecies are known:

  • Polia bombycina grisea ( Butler , 1878), in Eastern Russia
  • Polia bombycina mongolica ( Staudinger , 1896), in Mongolia
  • Polia bombycina psammochroa Varga , 1974, in Mongolia
  • Polia bombycina puengeli Lehmann , 1998 in Siberia and Japan

Way of life

The main flight time of the nocturnal moths flying in a generation falls in the months of June and July. They like to visit artificial light sources, as well as bait . The caterpillars live from the end of July and feed polyphagously , for example on the leaves of thorny restorer ( Ononis spinosa ), barberry ( Berberis vulgaris ), red dogwood ( Cornus sanguinea ) as well as bilberry ( Vaccinium myrtillus ) and cranberry ( Vaccinium uliginosum ). They have also been found on heather ( Calluna vulgaris ). The caterpillars overwinter and pupate in May of the following year.

Danger

The rest of the leaf owl is widespread in Germany. It is listed as not endangered on the Red List of Endangered Species .

swell

Individual evidence

  1. ↑ a b c Hermann Hacker, László Ronkay, Marton Hreblay: Hadeninae I . In: Michael Fibiger, David Agassiz, Martin Honey (Eds.): Noctuidae Europaeae . tape 4 . Entomological Press, Sorø 2002, ISBN 87-89430-07-7 (English).
  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. ↑ Manfred Koch : We identify butterflies. Volume 3: Owls. 2nd, expanded edition. Neumann, Leipzig / Radebeul 1972, DNB 760072930 .
  4. Jump up ↑ Zoltán Varga: Hadeninae (Lepidoptera, Noctuidae) from Mongolia. , Annales historico-naturales Musei nationalis hungarici, Vol. 66 [1]
  5. ^ Günter Ebert (Ed.): The butterflies of Baden-Württemberg . 1st edition. tape 7 . Moth V Noctuidae 3rd part. Ulmer, Stuttgart (Hohenheim) 1998, ISBN 3-8001-3500-0 .
  6. ↑ Ernst and Herta Urbahn: The butterflies of Pomerania with a comparative overview of the Baltic Sea region , Entomological Association of Stettin, Stettin 1939
  7. ↑ Federal Agency for Nature Conservation (Ed.): Red List of Endangered Animals in Germany . Landwirtschaftsverlag, Münster 1998, ISBN 3-89624-110-9 .

literature

  • Hermann Hacker, László Ronkay, Márton Hreblay: Hadeninae I . In: Michael Fibiger, David Agassiz, Martin Honey (Eds.): Noctuidae Europaeae . tape 4 . Entomological Press, Sorø 2002, ISBN 87-89430-07-7 (English).
  • Günter Ebert (Ed.): The butterflies of Baden-Württemberg . 1st edition. tape 7 . Moth V Noctuidae 3rd part. Ulmer, Stuttgart (Hohenheim) 1998, ISBN 3-8001-3500-0 .

Web links

Commons : Resting Leaf Owl  - Collection of images, videos and audio files