Exosoma lusitanicum
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Exosoma lusitanicum |
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| ( Linnaeus , 1767) |
Exosoma lusitanicum ( Syn .: Exosoma lusitanica , Malacosoma lusitanica ) is a beetle fromthe leaf beetle family and the subfamily Galerucinae . The genus Exosoma is represented in Europe with four species , of which only Exosoma lusitanica reaches Central Europe.
The generic name Exosoma is derived from the ancient Greek ἕξω, 'éxo', 'outside' and σῶμα, 'sōma', 'body'. The species name lusitānicus ( Latin , in Portugal, Lusitānia, occurring ') refers to the larger distribution area of the species.
Characteristics of the beetle
The predominantly red-yellow beetle, shiny as if painted, is between 6.5 and ten millimeters long. It is elongated oval and hairless.
The head, like the antennae, legs and underside of the chest, is black. The round eyes are strongly arched. The outer edge of the eye is lashed long. The eleven-part antennae are deflected between the eyes at half eye level and are moderately closer to each other at the base. They reach the back half of the wing covers. The second antenna segment is spherical, the third twice as long as it is wide. From the third link onwards, the feeler links are widened towards the end and inwards.
The very finely dotted pronotum is uniformly arched and without bumps. It is wider than it is long and narrows towards the front to almost the width of the head. The front edge is lashed with very fine hairs. It is flat. The front corners are obtuse, the rear corners rounded.
The elytra are dense and finely dotted. At the base they are together significantly wider than the rear edge of the pronotum. Towards the back they widen at most a little, at the back they are rounded together. A marginal strip of the wing covers (epipleuras) is clearly set off. The black label is rounded triangular.
The front hips are separated from each other by a narrow, keel-shaped extension of the front chest towards the rear (prosternal extension). The prosternal process does not reach the mid-breast. The tarsi appear, as is usual with leaf beetles, four-membered (cryptopentamer).
biology
The species is polyphagous and is found on swallowweed , cornflower and common groundwort . It can possibly be harmful to wine . It is tied to the locations of the host plants in warm, dry areas. Exosoma lusitanicum occurs both on the plain and at heights of a thousand meters.
distribution
The species is distributed in the western Mediterranean ( North Africa , Spain and Portugal , France , Switzerland and Italy as well as Sicily and Sardinia ), but has also been reported from the Middle East .
literature
- Heinz joy, Karl Wilhelm Harde, Gustav Adolf Lohse (ed.): The beetles of Central Europe . tape 9 . Cerambycidae Chrysomelidae . Spektrum Akademischer Verlag, Munich 1999, ISBN 3-8274-0683-8 (first edition: Goecke & Evers, Krefeld 1966).
- Gustav Jäger (Ed.): CG Calwer’s Käferbuch . K. Thienemanns, Stuttgart 1876, 3rd edition (as Malacosoma lusitanica )
- Edmund Reitter : Fauna Germanica, the beetles of the German Empire. Volume IV, KGLutz 'Verlag, Stuttgart 1912
Individual evidence
- ↑ a b Exosoma lusitanicum in Fauna Europaea. Retrieved February 19, 2012
- ↑ Exosoma in Fauna Europaea. Retrieved February 20, 2012
- ↑ Heinz Freude, Karl Wilhelm Harde, Gustav Adolf Lohse (ed.): Die Käfer Mitteleuropas . tape 9 . Cerambycidae Chrysomelidae . Spektrum Akademischer Verlag, Munich 1999, ISBN 3-8274-0683-8 (first edition: Goecke & Evers, Krefeld 1966).
- ↑ Sigmund Schenkling: Explanation of the scientific beetle names.
- ↑ Chi-Feng Lee, Ron Beenen: "Two new Erganoides species from PR China and Taiwan (Coleoptera: Chrysomelidae: Galerucinae)." Genus 21 (2): pp. 257–264 Wrocław July 30, 2010 as PDF
- ↑ Klaus Koch : The beetles of Central Europe . Ed .: Heinz Freude . tape 3 : ecology . Goecke & Evers, Krefeld 1992, ISBN 3-87263-042-3 .
- ↑ MV Ghiliani: Memoirs on the station des quelques coléoptères dans les différentes régions du Piémont. Annales de la Societe Entomologique de France: revue d'entomologie ..., Volume 5 by Societe Entomologique de France, Museum National d'Histoire Naturelle (Paris), Center National de la Recherche Scientifique (Paris)
