Marsh weed leaf tensioner

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Marsh weed leaf tensioner
Marsh weed leaf tensioner (Orthonama vittata)

Marsh weed leaf tensioner ( Orthonama vittata )

Systematics
Class : Insects (Insecta)
Order : Butterflies (Lepidoptera)
Family : Spanner (Geometridae)
Subfamily : Larentiinae
Genre : Orthonama
Type : Marsh weed leaf tensioner
Scientific name
Orthonama vittata
( Borkhausen , 1794)

The marsh weed leaf tensioner ( Orthonama vittata ), also called bitter clover leaf tensioner , is a butterfly ( moth ) from the family of the tensioners (Geometridae).

features

butterfly

The wingspan of the moth is 22 to 26 millimeters. The forewings have a light brownish base color. Several brown transverse lines almost parallel to the hem run on them. A narrow dark band can often be seen in the midfield. A black graduation line opens into the apex . A line made up of small black dots runs directly on the hem. The hind wings are a little lighter colored and provided with several weakly developed dark transverse lines. All wings show a small black discal spot.

Egg, caterpillar, pupa

The egg is yellowish, flat and finely dotted.

Adult caterpillars are light green or brownish in color and have indistinct, narrow back and side back lines. The broad side lines are light red to whitish.

The pupa is brown in color, shows greenish wing sheaths and has a very pointed cremaster .

Similar species

The marsh weed leaf tensioner is similar to the multi-line leaf tensioner ( Costaconvexa polygrammata ), but the black line dividing the apex is replaced by a whitish smear. In addition, the black line running along the hem is continuous or made up of lines.

Geographical distribution and occurrence

The species is sparsely distributed from the Arctic Circle through Europe to Siberia . It is also found in Turkey and Kazakhstan . The marsh weed leaf tensioner prefers to colonize damp meadows, swamp forests as well as riparian and bog areas.

Way of life

The nocturnal moths fly in two generations from May to early July and from late July to September. You visit artificial light sources . The caterpillars feed on the leaves of various types of bedstraw ( Galium ), especially bog bedstraw ( Galium palustre ) and bitter clover ( Menyanthes trifoliata ). The species overwinters as a caterpillar.

Danger

The marsh weed leaf tensioner occurs in different numbers in the German federal states, is considered endangered in some areas, but is listed as not endangered on the red list . However, due to the draining of previous habitats, a decline of the species cannot be ruled out in the future.

swell

Individual evidence

  1. ↑ 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. ^ 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. ↑ 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 . 1st edition. tape 8 . Moth VI. Spanner (Geometridae) 1st part. Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3497-7 .
  • 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 : Marsh weed leaf tensioner  - Collection of images, videos and audio files