Crossocerus leucostoma
| Crossocerus leucostoma | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Crossocerus leucostoma | ||||||||||||
| ( Linnaeus , 1758) |
Crossocerus leucostoma is a hymenoptera fromthe Crabronidae family .
features
The animals reach a body length of 8 to 10 millimeters and are therefore the largest of their kind. Their body is colored black, further features are the hollowed forehead area and the antenna shaft, which is colored white on the outside.
Occurrence
The animals occur in the entire central and northern European area (Switzerland: Jura Mountains, Alps), but also in Turkey, in eastern Siberia to Japan and in the northern part of the USA. Due to their resistance to cold, they can also colonize the higher areas of the low mountain range forests. The species is only found sporadically in the Netherlands, Luxembourg, Belgium, France and Germany.
Way of life
The females of Crossocerus leucostoma build their nests in dead wood of birch, spruce and pine. The deserted tunnels of the great birch sapwood beetle ( Scolytus ratzeburgi ) are often used for this . A single passage is 3 to 6 centimeters long with a single cell at its end. This cell is stocked with up to 17 small flies , the entrance to the passage is then closed with wood flour.
supporting documents
literature
- Manfred Blösch: The digger wasps in Germany: way of life, behavior, distribution . 1st edition. Goecke & Evers, 2000, ISBN 3-931374-26-2 .