Keywords: Common Spiders U.S. 277-9 Steatoda borealis.png en Steatoda borealis ”277 female 278 male Both enlarged four times 279 eyes 1902 The Common Spiders of the United States Ginn Company Boston 1902 James Henry Emerton 1847 “ 1931 other versions PD-old-70-1923 The Common Spiders of the United States Uploaded with UploadWizard Steatoda borealis |