Sorhagenia janiszewskae
| Sorhagenia janiszewskae | ||||||||||
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| Scientific name | ||||||||||
| Sorhagenia janiszewskae | ||||||||||
| Riedl , 1962 |
Sorhagenia janiszewskae is a butterfly ( moth ) fromthe Chrysopeleiidae family .
features
The moths reach a wingspan of 10 to 13 millimeters. Sorhagenia janiszewskae is similar to Sorhagenia rhamniella , but the fore wings are darker and more elongated (six times as long as they are wide). The light area in the middle of the wing is blurred. A reliable differentiation is only possible through a genital examination .
In the male, the uncus is spatulate. The valves including the ampulla are slender and tapered to a point. They are about a quarter longer than the Cucullus. The saccule is short and broad at the base. It tapers distally . The costa has two extensions, a small round one near the base and a large square one that connects to the smaller one. The Juxta is triangular. The vinculum is wide and V-shaped. The aedeagus is strong and has a large bulbous cecum penis.
In the females, the ostium is provided with two pointed and strongly sclerotized lateral plates. The lateral processes of the genital plate are triangular. The antrum widens at the confluence of the ductus bursae . The ductus bursae is slightly longer than the antrum. The corpus bursae is oval. The Signa have a small thorn in the middle.
The caterpillars are whitish, the head and neck shield are brownish. There is a gray, translucent spot on the mesonotum and epinotum.
distribution
Sorhagenia janiszewskae is widespread in Europe in the north to the south of Fennoscandinavia . The species is also found in the Caucasus and western Transcaucasia .
biology
The caterpillars develop on buckthorn ( Frangula alnus ) and occasionally also on Purgier buckthorn ( Rhamnus cathartica ), Alpine buckthorn ( Rhamnus alpina ) and Rhamnus fallax . The caterpillars live from May to June in the food aisles of young twigs, where they the Mark eat. This will cause the leaves at the top of the branch to wither, indicating that the caterpillars are infested. The caterpillar droppings are partly ejected through a side opening in the feeding passage. This opening is often on the axilla and is difficult to find. Young caterpillars also mine the petioles. The caterpillars pupate in a loose cocoon on the ground. The species forms one generation a year. The moths fly from late June to late August. But they were also found at the end of September and March. It is assumed that in contrast to Sorhagenia rhamniella and Sorhagenia lophyrella, moths occasionally overwinter in Sorhagenia janiszewskae .
supporting documents
- ↑ a b c d e 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. 174 (English).
- ^ A b Hans Malicky (1966): Preliminary communication on the biology and distribution of Sorhagenia SPULER (Lep., Momphidae) Entomologisches Nachrichtenblatt 13: Pages 37-42
- ^ Sorhagenia janiszewskae at Fauna Europaea. Retrieved March 24, 2012
Web links
- Lepiforum e. V. Taxonomy and Photos