Psenulus fuscipennis
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Psenulus fuscipennis , ♀ |
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| Scientific name | ||||||||||||
| Psenulus fuscipennis | ||||||||||||
| ( Dahlbom , 1843) |
Psenulus fuscipennis is a hymenoptera belonging tothe Crabronidae family .
features
The wasp reaches a body length of 6 to 8 millimeters. The species is difficult to distinguish from the other species of the genus Psenulus . The second receding wing vein opens into the second cubital cell, the apex is furrowed like a needle. The base area on the third sternite is delimited in the female. The males are fringed and hairy on the fifth and sixth sternite.
Occurrence
The species is distributed from Europe to East Asia. It colonizes various dry habitats in which sufficient nesting opportunities are found. The species flies in one generation from late June to September. It can be found widespread in Central Europe.
Way of life
The females create their nests in bores of beetles, stems and also nest boxes with diameters between 3.5 and 6 millimeters. The pulp of stems is gnawed off when building a nest. 8 to 10, maximum 20 cells are created per nest, each of which is filled with up to 47 tube aphids (Aphididae). Cells in which female larvae grow are elongated. The cell walls and the nest closure are made with a fine, silky saliva secretion. Before a cell is closed, each prey is checked again individually. It can happen that the larvae destroy the cell walls with increasing growth, then larger communal cocoons are formed during pupation. While the nest is being built, the females spend the night in the unfinished nest.
swell
Web links
literature
- Rolf Witt: Observe wasps, determine . 1st edition. Naturbuch-Verlag, 1998, ISBN 3-89440-243-1 .