2020 Dolomedes fimbriatus

Spider of the year 2020

Raft spider

Dolomedes fimbriatus (Clerck, 1757)

Dolomedes fimbriatus

Dolomedes fimbriatus

Information

The raft spider, Dolomedes fimbriatus (Clerck, 1757), belongs to the nursery web family of spiders (Pisauridae). Worldwide this family has 356 species. In Europe seven species occur. The genus Dolomedes is represented in Europe by two species: D. fimbriatus and D. plantarius (Clerck, 1757).

The raft spider has a Palearctic distribution. In Central Europe it mostly occurs in flatlands through to hills (up to 800 m above sea level), with records up to 1250 m above sea level in Austria.

In some places the species can be found quite often. Due to the destruction of many of its preferred habitats (moorland and wetlands) it has become rarer, although it is not considered endangered. Due to climate change it is likely that in the future they will have to be placed in an endangered category.

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