Requested reference
McCook, H. C. (1881). The snare of the ray spider (Epeira radiosa); a new form of orb web. Proceedings of the Academy of Natural Sciences of Philadelphia 33: 163-175. 
-- Show included taxa
McCook, H. C. (1881). The snare of the ray spider (Epeira radiosa); a new form of orb web. Proceedings of the Academy of Natural Sciences of Philadelphia 33: 163-175. -- Show included taxa