Wavy line bark tensioner

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Wavy line bark tensioner
Wavy cortex tensioner (Alcis repandata), ♀

Wavy cortex tensioner ( Alcis repandata ), ♀

Systematics
Order : Butterflies (Lepidoptera)
Family : Spanner (Geometridae)
Subfamily : Ennominae
Tribe : Boarmiini
Genre : Alcis
Type : Wavy line bark tensioner
Scientific name
Alcis repandata
( Linnaeus , 1758)
Preparation of a female
Preparation of a female of the Forma conversaria

The mottled beauty ( Alcis repandata ) or Braunmarmorierter tree Spanner is a butterfly ( moth ) from the family of the tensioner (Geometridae).

features

butterfly

The wingspan of the moth fluctuates widely and can be between 38 and 55 millimeters. They are characterized by a high degree of color variability. Whitish, gray and brownish tones dominate on the forewings. While the inner transverse line is smoothly curved, the outer one shows two outwardly directed protrusions. A clear white wavy line can be seen in the fringing area, which continues on the hind wings. Specimens with an almost black central field as well as a light root and border field are called f. conversaria , those with more or less strong darkening and only slightly recognizable drawing elements as f. nigricata . The antennae of the males are combed on both sides, those of the females are thread-shaped.

Caterpillar, pupa

Adult caterpillars have a cylindrical shape, are wrinkled on the sides, mostly gray-brown in color and show dark spots or marbling. The very slim doll is shiny red-brown in color and has a split tip on the cremaster .

Similar species

  • Brownish colored butterflies sometimes resemble the moss-green bark tensioner ( Deileptenia ribeata (Clerck, 1759)), which, however, lacks the strong protrusions of the outer wavy line and which usually has more rounded wing tips.
  • Bastelberger's rind tensioner ( Alcis bastelbergeri (Hirschke, 1908)) differs from the f. conversaria through the narrower and less bulged black central field, which is particularly noticeable in the male butterflies.

Synonyms

  • Boarmia repandata

Occurrence

The distribution area of ​​the wavy bark tension stretches through all of Europe to the Urals , in the south over the Mediterranean , Asia Minor , the Caucasus to Kazakhstan and in the north to the Arctic Circle . In the Alps it rises to 1,800 meters. The species inhabits deciduous, mixed and coniferous forests, bushy heaths, meadows, bog areas and settlement areas.

Way of life

The moths are mainly nocturnal and like to fly to artificial light sources , but also flowers of pipe grass ( Molinia ), ragweeds ( Senecio ) or snake knotweed ( Polygonum bistorta ). The main flight time of the wavy bark tension is the months May to August. The caterpillars live polyphagous on a large number of woody plants and low plants from late summer , so that they are sometimes referred to as "omnivores". As examples of fodder plants, only the frequently mentioned bilberries ( Vaccinium myrtillus ) and bogberry ( Vaccinium uliginosum ) as well as bracken ( Pteridium aquilinum ), blackberries ( Rubus ), heather ( Erica ), broom ( Cytisus scoparius ), silver fir ( Abies alba ), Spruce ( Picea ), pine ( Pinus ), oak ( Quercus ), birch ( Betula ) and willow ( Salix ) are listed. The caterpillars overwinter and pupate in the ground.

Danger

The species is widespread in all German federal states, in some cases frequent, and is therefore classified as not endangered on the Red List of Endangered Species .

swell

Individual evidence

  1. ^ A b Walter Forster, Theodor A. Wohlfahrt: The butterflies of Central Europe. Volume 5: Spanner. (Geometridae). Franckh'sche Verlagshandlung, Stuttgart 1981, ISBN 3-440-04951-5 .
  2. ↑ a b c Günter Ebert (Ed.): The butterflies of Baden-Württemberg. Volume 9. Moths VII. Geometridae 2nd part . 1st edition. Ulmer, Stuttgart (Hohenheim) 2003, ISBN 3-8001-3279-6 .
  3. ↑ Federal Agency for Nature Conservation (Ed.): Red List of Endangered Animals in Germany . Landwirtschaftsverlag, Münster 1998, ISBN 3-89624-110-9 .

literature

  • Günter Ebert (Ed.): The butterflies of Baden-Württemberg. Volume 9. Moths VII. Geometridae 2nd part . 1st edition. Ulmer, Stuttgart (Hohenheim) 2003, ISBN 3-8001-3279-6 .
  • Walter Forster , Theodor A. Wohlfahrt : The butterflies of Central Europe. Volume 5: Spanner. (Geometridae). Franckh'sche Verlagshandlung, Stuttgart 1981, ISBN 3-440-04951-5 .

Web links

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