Psen
| Psen | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Psen bicolor |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Psen | ||||||||||||
| Latreille , 1796 |
Psen is a genus of digger wasps (Spheciformes) from the Crabronidae family. There are 78 known species worldwide, 40 of which are distributed in the Palearctic . In Europe only psen ater occurs. The genus is distributed worldwide, with the exception of South America and Australia. The forewings have three submarginal cells.
features
The relatively large and black digger wasps have a longitudinally furrowed and hairy abdomen stalk on the sides and underside. The shiny pleures of the mesonotum are separated by a seam. The animals have small thorns or a cross bar between the antennae.
Way of life
So far the way of life of 14 species has been examined. The females create their nests in stumps or dead trees, in solidified sand or in the ground. Some species provide their nests with larger cicadas of the dwarf leafhopper families (Cicadellidae) or blood leaf hoppers (Cercopidae).
Systematics
Psen is the nominate form of the Psenini tribe within the subfamily Pemphredoninae .
supporting documents
Individual evidence
- ↑ a b c d Manfred Blösch: The digger wasps in Germany: way of life, behavior, distribution . 1st edition. Goecke & Evers, 2000, ISBN 3-931374-26-2 , pp. 146 f .
- ↑ psen. Fauna Europaea, accessed July 23, 2010 .
- ↑ Manfred Blösch: The digger wasps in Germany: way of life, behavior, distribution . 1st edition. Goecke & Evers, 2000, ISBN 3-931374-26-2 , pp. 151 .
literature
- Manfred Blösch: The digger wasps in Germany: way of life, behavior, distribution . 1st edition. Goecke & Evers, 2000, ISBN 3-931374-26-2 .