Dry grass stone tensioner

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Dry grass stone tensioner
Dark form of the dry grass stone spider (Charissa obscurata)

Dark form of the dry grass stone spider ( Charissa obscurata )

Systematics
Superfamily : Geometroidea
Family : Spanner (Geometridae)
Subfamily : Ennominae
Genre : Charissa
Subgenus : Charissa
Type : Dry grass stone tensioner
Scientific name
Charissa obscurata
( Denis & Schiffermüller , 1775)

The dry grasslands stone tensioner ( Charissa obscurata ) is a butterfly ( moth ) from the family of the tensioner (Geometridae).

features

butterfly

The moths reach a wingspan of 25 to 33 millimeters. From white-gray to black-brown colored specimens, the entire range of colors in between occurs. The circular centers on all four wings are typical of the species. On the front wings are strongly serrated transverse lines, the outer continues on the hind wings. The edge of the large hind wings is very wavy and indented, which distinguishes the moths from other Charissa species.

egg

The egg is shiny red in color. It is about twice as long as it is wide and covered with strong longitudinal and weaker transverse ribs.

Caterpillar

Adult caterpillars are relatively thick and short and gray in color with brownish marbling. They show yellow-white spots and dark slashes on the back. Two small warts on the eleventh segment with a white tip are characteristic.

Doll

The doll has a reddish brown color and is provided with two short thorns on the conical cremaster .

Geographical distribution and habitat

The dry grass stone spider occurs in almost all of Europe and is only missing in the very north and on some Mediterranean islands. In the east the occurrence extends through Asia Minor and the European part of Russia to the Caucasus as well as to Armenia and Azerbaijan . In the mountains it rises to 1,800 meters. He prefers to inhabit stony dry grass areas , scree, quarries as well as rocky steppe heaths and wine-growing areas.

Way of life

The moths are predominantly nocturnal. Sometimes they also fly during the day and suckle on the flowers of various plants. However, they are often hidden under stones. At night they visit artificial light sources . The main flight time is from June to September. The caterpillars live in late summer on the leaves of various plants, for example in Bellflower - ( Campanula ), plantain - ( Plantago ), mugwort - ( Artemisia ), sorrel - ( Rumex ) and clover ( Trifolium ) and on White Stonecrop ( Sedum album ) or Yellow Sunflower ( Helianthemum nummularium ). They overwinter and pupate in June of the following year.

Danger

The dry grass stone spanner occurs in all German federal states, but in very different numbers and is included on the red list of endangered species on the warning list.

swell

Individual evidence

  1. ↑ a b c d 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. ↑ Manfred Koch , Wolfgang Heinicke: We determine butterflies. 3. Edition. Neumann, Radebeul 1991, ISBN 3-7402-0092-8 .
  4. ↑ 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

Commons : Dry Grass Stone Spanner  - Collection of images, videos and audio files