Dashed rag tensioner
Dashed rag tensioner | ||||||||||||
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![]() Dashed lobes ( Trichopteryx polycommata ) |
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Systematics | ||||||||||||
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Scientific name | ||||||||||||
Trichopteryx polycommata | ||||||||||||
( Denis & Schiffermüller , 1775) |
The Dashed Lappenspanner ( Trichopteryx polycommata ) is a butterfly from the Spanner family (Geometridae). The species name is derived from the Greek words πολύς and χόμμα with the meanings "a lot" and "blow" or "section" and refers to the field drawing of the forewings.
features
butterfly
The moths reach a wingspan of 23 to 33 millimeters. There is no sexual dimorphism between the sexes in terms of color , but only the slightly larger males show a rudimentary third pair of wings, the so-called root lobes. The forewing color varies on the upper side from light brown to gray-brown. Typical of the species is a Y-shaped, red-brown and black dashed banding that begins forked at the front edge and, after merging, runs as a single band to the middle of the rear edge . A whitish wavy line is sometimes indistinct. The upper side of the hind wing is colored light gray-brown and shows an indistinct dark gray transverse line. The very small, whitish third pair of wings, known as the root lobe, arises at the roots of the hind wings. In the rest position, they lie on the hind wings and are completely covered by the forewings.
Caterpillar
Adult caterpillars are wrinkled, grass-green in color, dark green topline, yellowish to whitish side stripes and yellow segment incisions.
Similar species
The light-gray lobes ( Trichopteryx carpinata ) differs in the banded forms in that the transverse bands on the upper side of the forewing do not show any rust-brown colors.
distribution and habitat
The distribution area of the dashed lobes stretches from East Asia through the temperate zone to Europe. In Kazakhstan and the region between the Urals and Kamchatka comes subspecies Trichopteryx polycommata grisea , in eastern China , in Korea and Japan the subspecies Trichopteryx polycommata anna ago. The main habitat are bushy slopes, forewoods, forest edges and gardens with privet hedges ( Ligustrum ). In the Alps it rises to heights of 1500 meters.
Way of life
The moths are nocturnal and fly in one generation from mid-February to early May. They occasionally visit blooming pussy willows for food . At night they appear on artificial light sources . The caterpillars prefer to feed on the leaves of common privet ( Ligustrum vulgare ), sometimes also on honeysuckle ( Lonicera ) or various types of deciduous trees. They live from May and pupate in June in a light web on the ground. The pupa hibernates.
Individual evidence
- ^ Arnold Spuler : The butterflies of Europe , Volume 2, E. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart, 1910, p. 35
- ↑ Distribution worldwide
- ↑ 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. 74
- ^ Günter Ebert (Ed.): The butterflies of Baden-Württemberg. 1st edition. Volume 8. Moth VI. Geometridae 1 Ulmer, Stuttgart 2001, ISBN 3-8001-3497-7 , pp. 505-507
- ↑ Manfred Koch , Wolfgang Heinicke, Bernd Müller: We determine butterflies. Volume 4: Spanner. 2nd, improved and enlarged edition. Neumann, Leipzig / Radebeul 1976, DNB 780451570 , p. 96/97
literature
- Günter Ebert (Ed.): The butterflies of Baden-Württemberg. 1st edition. Volume 8. Moth VI. Geometridae 1 Ulmer, Stuttgart 2001, ISBN 3-8001-3497-7
Web links
- Lepiforum e. V. - Taxonomy and photos
- pyrgus.de - Butterflies and their ecology
- ukmoths - Barred Tooth-striped at UKmoths
- britishlepidoptera - Information on the species
- kolumbus.fi - caterpillar