Dystebenna stephensi
| Dystebenna stephensi | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Dystebenna | ||||||||||||
| Spuler , 1910 | ||||||||||||
| Scientific name of the species | ||||||||||||
| Dystebenna stephensi | ||||||||||||
| ( Stainton , 1849) |
Dystebenna stephensi is a butterfly ( moth ) fromthe grass leaf miner family (Elachistidae).
features
The moths reach a wingspan of 8 to 9 millimeters. The head shines white, the neck tuft is interspersed with brown scales . The antennae are ringed white and light brown, the last 5 segments are white. The thorax and tegulae are white and speckled brown in front. The front wings are gray and white and have a brown spot at the base of the Costa loader, which is followed by a wide band that runs into the middle of the wing. Brown costal strokes are halfway from the base of the wing and at the apex . Two dark brown spots with protruding scales can be found at one third and two thirds of the length of the inner wing edge. A narrow orange-brown line extends from the center of the base of the forewing to the inner dorsal spot. An orange-brown spot is below the costal line, this is connected to an orange-brown line at the apex. The fringed scales are light gray and have two brown transverse lines. The hind wings shine gray.
The uncus is missing in the males . The Gnathos arms are short and have large knobs at the tip. The tegumen is angular. The blades are double-lobed and have a hook-like projection on the side. The vinculum is "V" -shaped and has a long, pointed saccus. The aedeagus is long, straight, and tubular. The apex is hook-shaped, the vesica is provided with spikes.
In females, the apophyses posteriores are almost twice as long as the apophyses anteriores . The eighth tergite narrows distally . The lamella postvaginalis has two sclerotized plates. The antrum is cup-shaped. The ductus bursae is short and widens to the corpus bursae . The corpus bursae is egg-shaped, the sign is in the form of a long granulated band.
distribution
Dystebenna stephensi is native to Central Europe , England , southern Sweden , the Crimea and western Transcaucasia .
biology
The caterpillars develop on oak ( Quercus ) and chestnut species ( Castanea ) where they live under the bark of large and old trees. They also pupate in the bark. The species forms one generation per year, the moths fly from late June to early September and are often found in crevices in the bark on the trunk of the host plants, where they get caught in spider webs.
Systematics
The type species is Elachista stephensi Stainton , 1849. The following synonyms are known from the literature: The genus is monotypical .
- Elachista stephensi Stainton , 1849
- Tebenna tesselatella Herrich-Schäffer , [1854]
- Laverna stephensiella Doubleday , 1859
swell
Individual evidence
- ↑ a b c d e f J. C. Koster, S. Yu. Sinev: Momphidae, Batrachedridae, Stathmopodidae, Agonoxenidae, Cosmopterigidae, Chrysopeleiidae . In: P. Huemer, O. Karsholt, L. Lyneborg (eds.): Microlepidoptera of Europe . 1st edition. tape 5 . Apollo Books, Stenstrup 2003, ISBN 87-88757-66-8 , pp. 81 (English).
- ^ Dystebenna stephensi in Fauna Europaea. Retrieved September 20, 2011
- ↑ Dystebenna at Fauna Europaea. Retrieved September 21, 2011