Riverbank wolf spider

Animals
Habitat: Gravel and ballast banks
Class: Other

Riverbank wolf spider

The riverbank wolf spider can only be easily recognised when it moves along the gravel banks of the Tyrolean Lech. With its grey-brown colouring and the high-contrast drawing these spiders are very well camouflaged. They reach a considerable size. The females of the Riverbank wolf spider (Arctosa cinerea) are approx. 17 mmthe males approx. 14 mm long. This makes them one of the largest native representatives of the wolf spider family.

In order to survive on the gravel banks of the Tiroler Lech, the riverbank wolf spider has come up with a special trick. In the sandy subsoil it digs Living tubeswhich they are Spider silk padding. It stays there during the day and hunts at night. If there is a threat of flooding, it closes the openings of its burrow. The water flows away over the cave. Meanwhile, the riverbank wolf spider can survive in the air bubble.

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