Sedum web moth
| Sedum web moth | ||||||||||||
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Sedum spider moth ( Yponomeuta sedella ) |
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| Scientific name | ||||||||||||
| Yponomeuta sedella | ||||||||||||
| ( Treitschke , 1833) |
The Sedum web moth ( Yponomeuta sedella ) is a butterfly ( moth ) from the family of web and bud moths (Yponomeutidae).
features
The moths reach a wingspan of 16 to 20 millimeters and, like all species of the genus Yponomeuta, have white wings on which many small, black dots are distributed. The head and forehead of the moth are pale gray, the antennae and base limb ( scapus ) are gray. The labial palps are pale gray and darker underneath. The thorax is pale gray with five black spots. The scales on the wing joint of the thorax ( tegulae ) are also pale gray and each marked with a black spot. The pale gray forewings have a pattern of black spots, which are arranged in four rows. The first is located near the Costa loader and consists of three or four points in the basal half of the wing. The second row consists of three to six points located below the subcostal artery. The third row runs along the wing fold and consists of five to eight points. The fourth row consists of three to eight points and runs below the wing fold. The hind wings are gray, the legs and abdomen are pale gray.
The caterpillars reach a length of up to 18 millimeters and have a light blue-gray basic color, but the foremost and rearmost links have a distinctive yellow color. On both sides of the back there is a longitudinal row of larger black spots, on the sides there are other small black spots. The head is yellow.
The pupae are brown, the head and segment 10 are darker. The cremaster has six bristles, the dorsal pair being thinner and only half the length of the other bristles.
distribution
The Sedum web moth is only found locally in England and Wales , here the range extends to Lincolnshire and Worcestershire in the north. The species was also found in Northumberland. In Europe , the sedum Gespinstmotte is widespread in the east the settlement area stretches as far as China and Japan .
Way of life
The Sedum web moth can be found in forests and on the edges of fields. The caterpillars can be seen from June to July. The young caterpillars live as miners , later larval stages live in groups in a light web on the forage plants. They feed on stonecrop ( Sedum ), they therefore also have their name. Among the food crops include Sedum album ( Sedum album ), Great stonecrop ( Sedum telephium ) and closely related cultivars . Pupation takes place either in the communal web or in the litter, in a thin but opaque cocoon , which is also covered with a second web.
Flight and caterpillar times
The nocturnal moths, which can be attracted with artificial light, fly in two generations from April to August; for England and Wales, flight times are given from June to July and from September to October.
Taxonomy
- Phalaena viginti punctata Retzius, 1783 Non- binary name that is incorrectly cited in the online source, cf. Emmet 1996.
swell
Individual evidence
- ↑ a b c d A. M. Emmet (Ed.): The Moths and Butterflies of Great Britain and Ireland. Volume 3. Yponomeutidae, Roeslerstammiidae, Epermeniidae, Schreckensteiniidae, Coleophoridae, Elachistidae. Harley Books 1996, ISBN 0-946589-43-7
- ↑ Yponomeuta sedella Treitschke 1832. Fauna Europaea, Version 2.1, December 22, 2009, accessed on February 9, 2010 .
literature
- Thomas Kaltenbach, Peter Victor Küppers: Small butterflies. Verlag J. Neudamm-Neudamm, Melsungen 1987, ISBN 3-788-80510-2
