Dysdera erythrina ~ http://www.flickr.com/photos/qwertyqwertyqwerty/
Dysdera erythrina is a species of spider.
Very similar to the Woodlouse Spider (D. crocota),this species is slightly smaller and inhabits coastal areas. This species is found in the South coast of Britain, and like the woodlouse spider, this species can pierce human skin, but as it is smaller than the woodlouse spider, it is not as painful.