Bog sac spider
| Bog sac spider | ||||||||||||
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Marsh sac spider ( Clubiona stagnatilis ), female |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Clubiona stagnatilis | ||||||||||||
| Kulczynski , 1897 |
The swamp sac spider ( Clubiona stagnatilis ) is a spider from the family of the sac spider . The species is widespread in Central Europe, but is only found regionally more frequently in Germany.
features
The bog sac spider is one of the smaller species of the genus Clubiona in Central Europe. Males have a body length of 4 to 7 mm, females reach 5–9 mm. The front body ( prosoma ) is monochrome light brown and becomes dark reddish black towards the front, the chelicerae are black brown. The rear part of the body ( opisthosoma ) is a single color reddish brown, the lighter side of the abdomen is laterally separated from the upper side by a lighter line. The legs are monochrome, yellowish-brown, and sparsely spiked dark.
In Central Europe there are a number of very similar species of the genus; the reliable determination of the species is therefore only possible through a macroscopic examination of the genital organs (genital morphological).
distribution and habitat
The marsh sac spider inhabits large parts of the Palearctic from Ireland east to east Siberia . In north-south direction, the distribution extends from Scandinavia to central Italy and Romania, further in the east to central Afghanistan . The species is absent in Europe in Iceland and in large parts of the Mediterranean area, so it does not occur in Portugal, Spain and Greece. The distribution area is largely limited to the temperate zone. In Central Europe the species inhabits moist forests, swampy open landscapes, banks of water and moors.
Way of life
The marsh sac spider can be found in the low, grassy vegetation; sexually mature animals can be found from May to October. The residential webs of the species are quite noticeable. To do this, the spider folds a blade of grass twice, and the resulting interior space is lined with web. Here the females also lay the egg cocoon, which is guarded until the young spiders hatch.
Danger
The bog sac spider is common in suitable habitats. It is widespread in Germany, but is only found more frequently in regions. In the Red List of Germany the bog sac spider is classified as "endangered".
literature
- Ralph Platen, Bodo von Broen, Andreas Herrmann, Ulrich M. Ratschker, Peter Sacher: Total species list and red list of spiders, harvestmen and pseudoscorpions of the state of Brandenburg (Arachnida: Araneae, Opiliones, Pseudoscorpiones) with information on frequency and ecology. Nature conservation and landscape management in Brandenburg 8, booklet 2 (supplement); 1999.
- W. Nentwig, A. Hänggi, C. Kropf & T. Blick (eds.): Spinnen Mitteleuropas - identification key, genus Clubiona. on-line
Web links
Bog sac spider in the World Spider Catalog