Scotophaeus blackwalli, also known as the mouse spider, is a species of spider belonging to the family Gnaphosidae.
This species is widespread in Britain and northern Europe. They are commonly found in Britain around and inside houses, usually in the Autumn, and also under bark and in holes in walls in warmer parts of Europe. It hunts nocturnally.
The carapace is dark brown while the abdomen is brown/grey with hairs resembling the body of a mouse, hence the common name of 'mouse spider'. The legs are brown with thick pubescence. The male has a small scutum on the dorsum of the abdomen.
- Scotophaeus blackwalli isabellinus (Simon, 1873) — Corsica, Italy, Croatia
- Scotophaeus blackwalli politus (Simon, 1878) — France
|Wikimedia Commons has media related to Scotophaeus blackwalli.|
- "Taxon details Scotophaeus blackwalli (Thorell, 1871)", World Spider Catalog, Natural History Museum Bern, retrieved 2016-04-15
- Roberts, Michael J. (1996) Collins Field Guide - Spiders of Britain and Northern Europe, Collins, ISBN 978-0-00-219981-0, pp. 108-9
- Jones, Dick (1989) A Guide to Spiders of Britain and Northern Europe (revised edition), Hamlyn, ISBN 0-600-56710-9, p. 74
- Savory, Theodore (1945) The Spiders & Allied Orders of the British Isles, Warne, p. 64
- Scotophaeus blackwalli, Spider and Harvestman Recording Scheme
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