Auletobius sanguisorbae
| Auletobius sanguisorbae | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Auletobius sanguisorbae |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Auletobius sanguisorbae | ||||||||||||
| ( Cabinet , 1798) |
Auletobius sanguisorbae is a beetle from the family of leaf rollers (Attelabidae), which belong to the weevils (in the broader sense) (superfamily Curculionoidea ). The genus Auletobius belongs to the subfamily Rhynchitinae (Triebstecher) and is considered to be the original, basal representative of this line. The German name Wiesenknopf fruit cutter is rarely used for the species. Scientific synonyms are Auletobius congruus and Auletobius basilaris .
features
It is a small species of beetle with a body length between 2.5 and 3.4 millimeters. The entire beetle, including all its appendages, is black, only the mouthparts are reddish. The elytra often have a faint, blue metallic sheen, but they are not strongly metallic in color like many other Rhynchitinae. The entire surface of the body is covered with fine and thin, close-fitting brown hair that is inconspicuous. The proboscis in the male is about as long as the pronotum, in the female it is slightly longer, it is straight and is slightly wider (widened) towards the front. The antennae are pivoted in at the base of the trunk, they are relatively long with an elongated lobe that is barely recognizable from the antenna whip. The strikingly large eyes protrude hemispherically from the contour of the head. The pronotum is short and wide and rounded on the sides with a fine central groove. The elytra are a little longer than wide with a rectangular outline when viewed from above, they are only a little wider than the pronotum. At the end they are slightly shortened and leave part of the last pygidium uncovered. The entire body has a faint sheen, the head and pronotum are dense and coarse, the elytra are more finely dotted, whereby the dotting of the elytra does not reveal any rows with the exception of a dot stripe along the seam.
Way of life
As far as is known, the only nutrient and developmental plant of the species is the Great Wiesenknopf ( Sanguisorba officinalis , Rosaceae ). The beetles are mostly found on the flower heads. No details are known about the development of the larva or the life cycle, the species probably develops within the flower heads (or their buds), leaf wraps or rolls are not produced. The species is much rarer than its moderately common host plant and seems to need extensive flat bog or wet meadow complexes. Beetles can be seen from June to September.
distribution
The range of the species includes the eastern Europe and the Mediterranean area, it occurs from here to the east over Siberia to China and Japan. The distribution center of the genus is in East Asia, where numerous other related species occur. The species used to be widespread in Germany, but it is rare everywhere. Today it is threatened with extinction. Most of its former distribution area has already become extinct here, including in Baden-Württemberg and Saxony-Anhalt. More recent finds are only available from Bavaria. However, the species is also threatened with extinction here.
Web links
- Auletobius sanguisorbae at Fauna Europaea. Retrieved October 7, 210
swell
- Hans Gonget: The Nemonychidae, Anthribidae and Attelabidae (Coleoptera) of Northern Europe. Fauna Entomologica Scandinavica, Vol. 38. Brill Academic Publishers (Leiden).
- Joachim Rheinheimer & Michael Hassler (2010): The weevils of Baden-Württemberg. Publishing house regional culture. ISBN 978-3-89735-608-5 .
- Lothar Dieckmann (1974): Contributions to the insect fauna of the GDR: Coleoptera- Curculionidae (Rhinomacerinae, Rhynchitinae, Attelabinae, Apoderinae). Contributions to entomology: Contributions to the insect fauna of the GDR Vol. 24: 5–54, doi : 10.21248 / contrib.entomol.24.1-4.5-54 .
- GA Lohse: 3rd UFam. Attelabinae. In: H. Freude, KW Harde, GA Lohse (Ed.): Die Käfer Mitteleuropas. Volume 10. Goecke and Evers Verlag, Krefeld.
- AA Legalov (2010): A Review of the Tribe Auletini (Coleoptera, Rhynchitidae) from the Russian Fauna: 1. Subtribe Auletobiina. Entomological Review Vol. 90, No. 5: 591-602.
Individual evidence
- ^ Red list and list of species of weevils in Baden-Württemberg. In: Rheinheimer, J. & Hassler, M. (2010): The weevils of Baden-Württemberg. Conservation Spectrum, Topics 99. regional culture publisher. download ( Memento of the original from June 20, 2012 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 393 kB)
- ↑ Karla Schneider: Red list of weevils of the state of Saxony-Anhalt. 2nd version, as of February 2004. Reports of the State Office for Environmental Protection Saxony-Anhalt, Volume 39.
- ↑ Gerhard Rössler (2000): Remarkable beetle finds from the Fichtel Mountains and from neighboring natural areas. Newsletter of Bavarian Entomologists 49 (1/2): 30–37.
- ↑ Peter Sprick, Horst Kippenberg, Jürgen Schmidl, Lutz Behne (2003): Red list and species inventory of Bavarian weevils. Published by the Bavarian State Office for the Environment. download (PDF; 96 kB)
