Combhorn click beetle

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Combhorn click beetle
Ctenicera cuprea

Ctenicera cuprea

Systematics
Class : Insects (Insecta)
Order : Beetle (Coleoptera)
Subordination : Polyphaga
Superfamily : Elateroidea
Family : Click beetles (Elateridae)
Genre : Combhorn click beetle
Scientific name
Ctenicera
Latreille , 1829

The comb horn beetle ( Ctenicera ) are a beetle - genus of the family of beetles . Nine species of them occur in Europe.

description

The beetles are 12 to 18 millimeters long. As a typical property of all click beetles, the underside of the front chest ( prothorax ) also has an extension towards the rear of the comb horn click beetles, which forms part of the jumping apparatus; as with all species of the subfamily Ctenicerinae this is pointed and long. The underside of the front chest has no grooves for inserting the antennae . The rear hips ( coxae ) partially cover the thighs ( femora ) in the resting position. These so-called thigh ceilings are only slightly narrower on the outside than on the inside in Ctenicera . The front ledges above the deflection of the antennae are well developed but short. The mouth parts are directed forward. The blueprint of the antennae in the species of the genus Ctenicera is based on that of the other click beetles, in which males and females differ greatly on this point. The antennae of the males are combed from the 3rd or 4th link (name), that is, the individual antennae links are drawn out in long slats. In the females, however, the antennae are sawn. The pronotum is significantly longer than it is wide and has a clearly visible central groove. The rear outer angles are keeled and adjoin the deck wings (Elytren). The hairiness of the pronotum runs in different directions. At least the head and pronotum, but mostly also the wing covers, are colored metallic green, blue or copper.

biology

The larvae live in the ground or in rotten wood. The beetles appear on the plains in late spring and at higher altitudes in summer. You can find them in the sun on flowering grasses or low bushes. They are very active in the sunshine.

Species (Europe)

credentials

  1. Ctenicera. Fauna Europaea, accessed September 12, 2007 .

literature

  • H. Joy, KW Harde, GA Lohse: Die Käfer Mitteleuropas, Vol. 6 . Spectrum Academic Publishing House in Elsevier 1966, ISBN 3-827-40683-8