Keywords: Common Spiders U.S. 495 Uloborus web.jpg en Horizontal web of Uloborus near the ground one side attached to a fallen tree The outer spiral is finished over only half the diameter of the web A line of loose silk runs across the web and in the middle is a peculiar zigzag spiral The figure is about the real size 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 Uloborus |