Bastelberger's bark tensioner

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Bastelberger's bark tensioner
Bastelberger's bark tensioner (Alcis bastelbergeri) ♂

Bastelberger's bark tensioner ( Alcis bastelbergeri ) ♂

Systematics
Order : Butterflies (Lepidoptera)
Family : Spanner (Geometridae)
Subfamily : Ennominae
Tribe : Boarmiini
Genre : Alcis
Type : Bastelberger's bark tensioner
Scientific name
Alcis bastelbergeri
( Hirschke , 1908)

Bastelberger's bark spanner ( Alcis bastelbergeri ) or banded mountain forest tree spanner ( Alcis deversata ) is a butterfly ( moth ) from the spanner family (Geometridae). The name of the species honors the German entomologist Max Bastelberger .

features

butterfly

The moths usually reach a wingspan of about 38 to 43 millimeters. Gray and brownish tints predominate on the forewings. Directly on the curved, black-colored inner transverse line is a ribbon-shaped middle shadow, also black-colored. The outer transverse line is only black in the front half and then runs indistinctly to the inner edge. A white wavy line can be seen in the fringe area, followed by a clear dark spot in the middle, directed towards the root. The outer transverse line and wavy line continue in a weakened form on the hind wings. There is often a white ring-shaped mark behind the thorax . The antennae of the males are strongly combed on both sides, those of the females are thread-shaped.

Similar species

Bastelberger's bark tensioner differs from the color variant conversaria of the wavy bark tensioner ( Alcis repandata ) by the narrower and less bulged black-colored central shadow , which is particularly noticeable in the male butterflies.

Synonyms

  • Alcis maculata
  • Alcis deversata
  • Boarmia maculata

Occurrence

The distribution area of ​​Bastelberger's Rindenspanner extends through Central Europe to beyond the Urals to East Asia, where the ssp. sachalinensis is alive. In the Alps it rises up to 1200 meters. The species prefers to inhabit coniferous forests, gorse and juniper heaths, forest meadows and areas with blueberry vegetation.

Way of life

The moths are predominantly nocturnal and like to fly to artificial light sources , but also flowers of thistles, widow flowers ( Knautia ), fox's groundwort ( Senecio ovatus ) or common water feast ( Eupatorium cannabinum ). The main flight time is from July to September. The caterpillars live polyphagous on a large number of woody plants and low plants from late summer , for example on bilberry ( Vaccinium myrtillus ), common clematis ( Clematis vitalba ), raspberry ( Rubus idaeus ), heather ( Erica ) as well as birch ( Betula ) and other deciduous and conifers. The caterpillars overwinter.

Danger

The species is widespread in the central and southern German federal states, sometimes not rare and is therefore classified as not endangered on the Red List of Endangered Species .

swell

Individual evidence

  1. ↑ a b 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 .
  2. ↑ Walter Forster, Theodor A. Wohlfahrt: The butterflies of Central Europe. Volume 5: Spanner. (Geometridae). Franckh'sche Verlagshandlung, Stuttgart 1981, ISBN 3-440-04951-5 .
  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 .
  • Manfred Koch , Wolfgang Heinicke, Bernd Müller: We determine butterflies. Volume 4: Spanner. 2nd, improved and enlarged edition. Neumann, Leipzig / Radebeul 1976, DNB 780451570 .

Web links

Commons : Bastelbergers Rindenspanner  - Collection of pictures, videos and audio files