American spiders and their spinningworkA natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . FiG. 103. Cocoon string of Uloborus in position upon the snare. uncertainty around any such generalization. For example, it has long beensupposed that Argiope cophinaria spins but one cocoon; and, judging from 1 Spiders of the United States, page 129, plate xix., Fig. 12G. 108 AMERICAN SPIDERS AND THEIR Fig. 104. Cocoon string ofUloborus; cocoons in thesnare. (After Emerton.) its size and the number of eggs that are found the
American spiders and their spinningworkA natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . FiG. 103. Cocoon string of Uloborus in position upon the snare. uncertainty around any such generalization. For example, it has long beensupposed that Argiope cophinaria spins but one cocoon; and, judging from 1 Spiders of the United States, page 129, plate xix., Fig. 12G. 108 AMERICAN SPIDERS AND THEIR Fig. 104. Cocoon string ofUloborus; cocoons in thesnare. (After Emerton.) its size and the number of eggs that are found therein, one would seemto be sufficient to guarantee the continuance of the species. I have no douljt that, as a general rule, Coph-inaria makes but one cocoon, butthat there are exceptions is verycertain. Several years ago a clericalfriend brought me two cocoons ofthis species, which had been spunon his premises by the same spi-der. Mrs. Mary Treat has discov-ered what appears to her to be a va-riety of Argiope cophinaria, whichmajics four cocoons, and which sheaccordingly named Argiope multi-concha. ^ She sent me a string ofthese cocoons, of which there werefour, of the general shape and about the usual size, strung within a fewinches of each other. They had been spun against the wall of a kitchenin a house in Western Missouri. The spider mother was also sent, but thespecimen was much dried up, and in such a condition that it could notbe very satisfactorily studie
Size: 1628px × 1535px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectspiders, bookyear1890
