Eyebright capsule tensioner

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Eyebright capsule tensioner
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Eyebright capsule strainer ( Perizoma blandiata )

Systematics
Class : Insects (Insecta)
Order : Butterflies (Lepidoptera)
Family : Spanner (Geometridae)
Subfamily : Larentiinae
Genre : Perizoma
Type : Eyebright capsule tensioner
Scientific name
Perizoma blandiata
( Denis & Schiffermüller , 1775)

The eyebright capsule spanner ( Perizoma blandiata ) is a butterfly ( moth ) from the spanner family (Geometridae).

features

butterfly

The moths reach a wingspan of 16 to 24 millimeters. The sexes do not differ in color. The basic color of the upper side of the forewing is whitish. In the midfield, a black band stands out between the front edge and the cell , which is only very indistinct or faded in the further course up to the rear edge . The hem field is colored light gray. A slightly darkened fringe stands out from the whitish-colored upper side of the hind wing.

Caterpillar

Adult caterpillars are short and stocky. They are green in color and have a broad red to red-brown topline. This color combination is an excellent camouflage and can be interpreted as an imitation of the reddish stem of an eyebright plant ( Euphrasia ).

Similar species

The small eyebright capsule tensioner ( Perizoma minorata ) differs in that the middle black band on the upper side of the forewing runs continuously from the front edge to the rear edge.

Distribution and occurrence

Common eyebright, the main food plant of the caterpillars

The distribution area of ​​the eyebright capsule stretches from southwest Europe over the British Isles and further east to the Central Asian mountains. He is missing on the Mediterranean islands. In the Hebrides , the Faroe Islands and Iceland it is represented by the subspecies Perizoma blandiata perfasciata . The species prefers to inhabit moist forest meadows, floodplains, poor grasslands, bushy hilly landscapes and litter meadows. In the Alps , it rises to around 2000 meters.

Way of life

The eyebright capsule strainer forms an elongated generation per year, whose moths fly from mid-May to mid-September. The moths are crepuscular and nocturnal and visit artificial light sources . The main food of the caterpillars is the flowers and fruits of the common eyebright ( Euphrasia officinalis rostkoviana ). The caterpillars live freely on the food plant at an early stage and not like many other perizoma species in the seed pods. The species hibernates as a pupa on the ground and sometimes hovers over several times.

Individual evidence

  1. ↑ Axel Hausmann (Ed.), Vladimir Mironov: The Geometrid Moths of Europe 4. Larentiinae 2. , Apollo Books, Stenstrup (Denmark) 2004, ISBN 87-88757-40-4 , pp. 42-44
  2. ^ A b c Günter Ebert, Daniel Bartsch, Armin Becher, Stefan Hafner: The butterflies of Baden-Württemberg. Volume 9: Spanner (Geometridae). Part 2: Nachtfalter VII. Ulmer Verlag, Stuttgart 2003, ISBN 3-8001-3279-6 , pp. 46-49
  3. ↑ Walter Forster & Theodor A. Wohlfahrt : The butterflies of Central Europe, Volume 5, Spanner. (Geometridae). Franckh'sche Verlagshandlung, Stuttgart 1981, ISBN 3-440-04951-5 , p. 133
  4. ↑ Manfred Koch , Wolfgang Heinicke, Bernd Müller: We determine butterflies. Volume 4: Spanner. 2nd, improved and enlarged edition. Neumann, Leipzig / Radebeul 1976, DNB 780451570 , p. 148/149

literature

  • Axel Hausmann (Ed.), Vladimir Mironov: The Geometrid Moths of Europe 4. Larentiinae 2. , Apollo Books, Stenstrup (Denmark) 2004, ISBN 87-88757-40-4
  • Günter Ebert, Daniel Bartsch, Armin Becher, Stefan Hafner: The butterflies of Baden-Württemberg. Volume 9: Spanner (Geometridae). Part 2: Nachtfalter VII. Ulmer Verlag, Stuttgart 2003, ISBN 3-8001-3279-6 .
  • Arno Bergmann: The large butterflies of Central Germany. Volume 5/1: Spanner. Distribution, forms and communities. Urania-Verlag, Jena 1955, DNB 450378403 .

Web links

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