Nitela borealis
| Nitela borealis | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Nitela borealis | ||||||||||||
| Valkeila , 1974 |
Nitela borealis is a hymenoptera fromthe Crabronidae family . It was not recognized as an independent species until 1974 andsplit offfrom Nitela spinolae .
features
The wasp reaches a body length of 3 to 4 millimeters. The forehead, the mesonotum and the scutellum are dotted, the tergites are usually not. The dorsal field is shiny. These two features distinguish the species from the similar Nitela spinolae , whose tergites are dotted and whose dorsal field is dull.
Occurrence
The species is common in Central and Northern Europe. It colonizes different habitats up to 800 meters above sea level and apparently also occurs in forests where suitable nesting opportunities are found. They are often found on artificial nesting aids in human settlement areas. The species flies from June to the end of September, it is common to often found in Central Europe.
Way of life
The females make their nests in the wood, behind pine bark and in hollow or medullary stems in sunny locations. In the wood, the corridors have a diameter of about 2.5 millimeters. The nests consist of two to six cells, with wooden pegs built into the cell walls. The brood is supplied with dust lice (Psocoptera) and rarely also with leaf fleas of the family Psyllidae and tube aphids (Aphididae). About 30 animals are stored per cell.
supporting documents
literature
- Rolf Witt: Wasps. Observe, determine. Naturbuch-Verlag, Augsburg 1998, ISBN 3-89440-243-1 .