Carpenter's ram
| Carpenter's ram | ||||||||||||
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Carpenter's buck ( Acanthocinus aedilis ) |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Acanthocinus aedilis | ||||||||||||
| ( Linnaeus , 1758) |
The Zimmermann Bock or room (s) bock or Schneider Bock ( Acanthocinus aedilis ) is a beetle from the family of longhorn beetles (Cerambycidae).
features
Carpenter's rams are 12 to 20 millimeters long. The chitin armor is colored brown. On the upper side, the beetles are covered with fine gray-brown hairs (tomentum) that create an irregular pattern. As a result, they can hardly be seen on the bark. Four small yellow tomentum spots are visible on the pronotum, which is wider than it is long and has a pointed hump protruding from each side. The body is elongated. The elytra are not long enough that part of the abdomen at the rear end remains uncovered. In addition, 2 oblique dark transverse bands are visible on the wing covers. In the females this is intensified by the ovipositor. The unusually long antennae are particularly characteristic of the beetle ; in males these are about five times as long as the body and in females they are up to twice as long. Both the thread-like antennae and the legs are colored alternately brown and black.
Occurrence
The beetles occur in Europe up to the northern border of the continent. The southern limit of distribution is at the level of the northern Balkans. There are local occurrences in Ireland and Scotland. Outside of Europe, the beetle can be found in Siberia and the Caucasus. The range and frequency of the beetles have decreased significantly recently. The animals prefer to stay on freshly felled pine trunks, but can also be found on other tree stumps. They can be found in the lowlands up to the mountains in mixed coniferous forests and in wood storage areas.
Way of life
The diurnal animals are mostly found near their food. They feed on pine needles and bast and bark. By rubbing the pronotum and thorax together, the animals are able to make chirping noises. After mating, the female lays 30 to 50 eggs in the bark of dead or fallen pine trees or in their free-standing roots. The hole is drilled into the bast with the long laying tube. The larvae live in the bark during their entire development phase and feed on the wood of the tree. After several moults, it reaches a length of 35 millimeters and pupates in a pupa cradle . The beetle hatches in autumn, but hibernates in the wood and does not crawl into daylight until spring.
literature
- Jiři Zahradnik, Irmgard Jung, Dieter Jung et al .: Beetles of Central and Northwestern Europe. Parey, Berlin 1985, ISBN 3-490-27118-1
- Michael Chinery : Parey's Book of Insects. A field guide of European insects. Publishing house Paul Parey, Hamburg u. Berlin 2004, ISBN 3-440-09969-5
