Great blackberry jewel beetle
| Great blackberry jewel beetle | ||||||||||||
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Large blackberry jewel beetle on blackberry leaf |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Coraebus rubi | ||||||||||||
| ( Linnaeus , 1767) |
 Fig. 1: Top view Fig. 2: Front view  |
 Fig. 3: Side view Fig. 4: Pronotum posterior angle  |
The Great blackberry jewel beetles (also frequent Bindiger Filzfußprachtkäfer , Coraebus rubi ) is a beetle from the family of the jewel beetle and the subfamily of Agrilinae .
The genus Coraebus , sometimes also Coroebus , is named after a winner in the Olympic Games with the name Κόροιβος Kóroibos . The species name rubi ( Latin ) expresses that the species can be found on the genus Rubus , (blackberries), which also explains the German name.
Characteristics of the beetle
The cylindrical body reaches a length of 7.5 millimeters to ten millimeters. It is black, the front part of the body is often bronze, and the wing covers have a metallic bluish tint.
The head is much wider than it is long when viewed from above. The mouthparts with the strong upper jaws point downwards. The four-part jaw probe ends with an egg-shaped end member, the end part of the three-part lip probe is large and club-shaped. The large eyes are on the side of the head. Its rear edge runs parallel and at a small distance from the side edge of the pronotum . The short, eleven- link antennae are sawn from the fourth link. At a distance from one another, they are deflected into clear antennae sockets in front of the eyes. The middle antennae are wider than they are long.
The pronotum is much wider than it is long. Its rear edge is curved outwards in front of the label, to the right and left of it inwards. The pronotum has a single (not double) border. On the side in front of the base it is flat and wrinkled. In the outer corners of the base there is a short, clearly curved keel (Fig. 4). The front chest is not extended forward on the underside of the body behind the head (without a chin strap).
The elytra are long, slightly widened behind the middle, then evenly pointed. They are dense and evenly dotted like scales and without dotted stripes. The hairs form five wavy, whitish transverse bands, of which the first two often merge into one band and which are often very weak. The heart-shaped label is not keeled (Fig. 1), wrinkled and matt.
The legs are graceful and can be easily placed against the body. The five-part tarsi are short, the first part of the tarsi is not particularly long. All tarsal links except the claw link are lobed.
biology
The beetles like to sit open on blackberry leaves in the blazing sun. You are not very active. If disturbed, they pull up their legs and roll onto the floor. A collection trip in Spain is reported "very fleetingly in the mornings, eating the leaves after 5 pm, easy to catch".
The larvae develop in the roots of blackberry bushes. Pupation takes place near the root neck. Since the species is also found on roses, it is variously referred to as a rose pest.
distribution
The species is widespread as a typical Palearctic species, from the Iberian Peninsula to Syria and the northern part of India . In Europe, it occurs in the south, where the range extends to North Africa. It can also be found in Central and Eastern Europe. It is missing in the north ( Great Britain , Belgium , the Netherlands , Scandinavia , the Baltic States ).
In Germany you can find the beetle in the southern federal states. Further finds must show whether the species is naturalized in Saxony-Anhalt . In South Tyrol the species is scattered and rare.
literature
- Heinz Joy, Karl Wilhelm Harde, Gustav Adolf Lohse: The beetles of Central Europe . tape 6 : Diversicornia . Spectrum, Heidelberg 1979, ISBN 3-87263-027-X .
- Gustav Jäger (Ed.): CG Calwer's Käferbuch. K. Thienemanns, Stuttgart 1876, 3rd edition.
Individual evidence
- ↑ List of German names ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. ( MS Excel ; 380 kB)
- ↑ a b Coraebus rubi at Fauna Europaea. Retrieved February 8, 2011.
- ↑ Sigmund Schenkling: Explanation of the scientific beetle names.
- ↑ Hans Pochon: Buprestidenausbeute from Spain. Miscelanea Zoologica as PDF
- ↑ a b Polish coleopterological website
- ^ A b Klaus Hellriegel: Faunistics of the jewel beetles of South Tyrol. In: Forest observer. Volume 5. 2010, p. 179. provincia.bz.it ( Memento of the original from March 30, 2016 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).
- ↑ Red list of jewel beetles in the state of Saxony-Anhalt. (PDF; 90 kB)
