Olive brown cave tensioner

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Olive brown cave tensioner
Triphosa dubitata.jpg

Olive-brown cave moth ( Triphosa dubitata )

Systematics
Class : Insects (Insecta)
Order : Butterflies (Lepidoptera)
Family : Spanner (Geometridae)
Subfamily : Larentiinae
Genre : Triphosa
Type : Olive brown cave tensioner
Scientific name
Triphosa dubitata
( Linnaeus , 1758)

The olive-brown cave tensioner ( Triphosa dubitata , simply) cave tensioner called, is a butterfly from the family of the tensioner (Geometridae).

description

butterfly

The moths reach a wingspan of 38 to 48 millimeters and are characterized by very broad wings. The basic color of the forewings is predominantly olive brown or purple brown. The transverse lines delimiting the dark central field are usually broadly black-violet on the inside, so that two transverse bands arise. Occasionally, specimens that are lighter in color appear overall. The hind wings are light gray-brown in color and have some indistinct transverse lines. All wings show a wavy, black hemline.

Caterpillar

Adult caterpillars are yellowish green in color and have yellowish longitudinal lines, wide yellow lateral stripes, black point warts and reddish stigmas .

Doll

The dull brown-red colored doll shows a light purple ring, slightly protruding leg and trunk sheaths as well as a weakly forked tip and short side hooks on the conical cremaster .

Similar species

There is a certain similarity to the large barberry spider ( Hydria cervinalis ), which, however, has a much narrower central field.

Geographical distribution and occurrence

The distribution area of ​​the species extends from North Africa , Spain and France including the British Isles through Russia to the Caucasus and East Asia , in the north to southern Fennoscandinavia , occasionally to Lapland , in the south to the Balkan Peninsula and Asia Minor . In the Alps it still occurs at an altitude of 2200 meters. The main habitat are warm slopes, bushy forest edges and heaths as well as gardens, parklands and settlement areas.

Way of life

The olive brown cave tensioner flies in one generation from mid-July. It overwinters and then lives until May of the following year. Preferred winter quarters are caves, rock crevices, protected, dry areas under bridges, road underpasses, tunnels, sheds and houses. There, the sociable animals share the habitat with the cave wheel web spider ( Meta menardi ), to which a number of butterflies fall prey. Before and after winter dormancy, the moths need a lot of food, which is why they like to suckle on the blossoms of the butterfly lilac ( Buddleja davidii ) in autumn and on blooming pussy willow ( Salix ) in spring . The nocturnal moths also appear occasionally in artificial light sources . The caterpillars live in May and June. They feed on the leaves of various types of wood, including buckthorn ( Rhamnus ), buckthorn ( Frangula alnus ) and blackthorn ( Prunus spinosa ).

Danger

The species occurs in different numbers in the German federal states and is listed on the red list of endangered species on the warning list.

swell

Individual evidence

  1. ↑ a b c 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 . 1st edition. tape 8 . Moth VI. Spanner (Geometridae) 1st part. Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3497-7 .
  3. ↑ Manfred Koch, Wolfgang Heinicke, Bernd Müller: We determine butterflies. Volume 4: Spanner. 2nd, improved and enlarged edition. Neumann, Leipzig / Radebeul 1976, DNB 780451570 .
  4. ↑ Federal Agency for Nature Conservation (Ed.): Red List of Endangered Animals in Germany . Landwirtschaftsverlag, Münster 1998, ISBN 3-89624-110-9 .

literature

  • Manfred Koch , Wolfgang Heinicke, Bernd Müller: We determine butterflies. Volume 4: Spanner. 2nd, improved and enlarged edition. Neumann, Leipzig / Radebeul 1976, DNB 780451570 .
  • Günter Ebert (Ed.): The butterflies of Baden-Württemberg . 1st edition. tape 8 . Moth VI. Spanner (Geometridae) 1st part. Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3497-7 .

Web links

Commons : Olive Cave Spanner  - Collection of Images, Videos, and Audio Files