Pustular tensioner

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Pustular tensioner
IKAl 20100615 Comibaena bajularia.jpg

Pustular spanner ( Comibaena bajularia )

Systematics
Class : Insects (Insecta)
Order : Butterflies (Lepidoptera)
Family : Spanner (Geometridae)
Subfamily : Geometrinae
Genre : Comibaena
Type : Pustular tensioner
Scientific name
Comibaena bajularia
( Denis & Schiffermüller , 1775)

The Pustelspanner ( Comibaena bajularia ), also known as the Green Oak Forest Spanner , the Oak Forest Green Spanner or the Oak Sack Carrier Spanner , is a butterfly ( moth ) from the Spanner family (Geometridae).

features

butterfly

The wingspan of the males is 22 to 28 millimeters, that of the females 24 to 32 millimeters. All wings are colored deep green. The green color elements can fade with increasing service life and then take on yellowish tints. There is a yellowish spot on the inner corner of the fore and hind wings. These spots are filled with a brownish color. Similar spots can be seen on the outer edge of the hind wings. Since these spots have a pustular appearance, the species was previously referred to with the synonym pustulata (Latin pustula = vesicles, pustule). The whitish transverse lines on the forewings are mostly indistinct. The fringes of all wings are pied light and dark. While the antennae of the males are combed on both sides, those of the females have a thread-like appearance.

egg

The egg has an oval, slightly flattened shape and is pale pink in color.

Caterpillar

Adult caterpillars are yellow-brown in color. They show a blackish, yellow bordered topline as well as elongated, white warts.

Doll

The doll is short and fat, tapers at the end and is equipped with numerous thorns. It has a brown color, but the wing sheaths stand out lighter, which are also darkly striped. The Kremaster is triangular and has four strong hook bristles.

Geographical distribution and occurrence

The distribution of the species extends through large parts of Europe (with the exception of the far north) and further southeast to Turkey and the Caucasus . In the Southern Alps it rises up to 1,000 meters. It can be found predominantly in oak forests.

Way of life

The moths fly univoltin in the months of June and July. They are crepuscular and nocturnal and fly to artificial light sources . To camouflage themselves, the caterpillars cover themselves with small pieces of dried up leaf remnants, which they spin on their backs and which give them the appearance of a withered leaf as they move. The caterpillars of the emerald moth ( Thetidia smaragdaria ) and those of most sack-bearer species (Psychidae) also show a similar behavior . The pustular caterpillars prefer to feed on the leaves of various oak species ( Quercus ) and overwinter. Pupation takes place in a spun leaf.

Danger

The pustular spider occurs in different numbers in the German federal states, but is rare in some areas and is included on the red list of endangered species on the warning list.

swell

Individual evidence

  1. ^ Axel Hausmann: The Geometrid Moths of the World . In: Axel Hausmann (Ed.): The Geometrid Moths of Europe . 1st edition. Volume 1: Introduction. Achiearinae, Orthostixinae, Desmobathrinae, Alsophilinae, Geometrinae. Apollo Books, Stenstrup 2001, ISBN 87-88757-37-4 (English).
  2. ^ A b 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. ^ 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 .
  4. ↑ Federal Agency for Nature Conservation (Ed.): Red List of Endangered Animals in Germany . Landwirtschaftsverlag, Münster 1998, ISBN 3-89624-110-9 .

literature

  • Axel Hausmann: The Geometrid Moths of the World . In: Axel Hausmann (Ed.): The Geometrid Moths of Europe . 1st edition. Volume 1: Introduction. Achiearinae, Orthostixinae, Desmobathrinae, Alsophilinae, Geometrinae. Apollo Books, Stenstrup 2001, ISBN 87-88757-37-4 (English).
  • 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 : Pustelspanner  - Collection of images, videos and audio files