American spiders and their spinningworkA natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . ded well towards tlie top. Blackwalls figure of the manner in which the cocoons are susi)endcdis erroneous, or the English spiders must differ in habit from the Ameri-can. I have never seen any such sheeted, bell shaped tent as that whichthis author represents as enclosing the cocoons. The cocoon is rather simple in structure, consisting of an outer case of yellowi;Sh brown material, well compacted, stiff, within which the ^°°°!^ eggs are l
American spiders and their spinningworkA natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . ded well towards tlie top. Blackwalls figure of the manner in which the cocoons are susi)endcdis erroneous, or the English spiders must differ in habit from the Ameri-can. I have never seen any such sheeted, bell shaped tent as that whichthis author represents as enclosing the cocoons. The cocoon is rather simple in structure, consisting of an outer case of yellowi;Sh brown material, well compacted, stiff, within which the ^°°°!^ eggs are loosely placed without any or with but little interior pad- ding. During the weaving process the cocoon is hung by a strong thread, or series of threads, to the cross lines of the snare. The spider My systematic knowledge of the other tribes is far less than of Orbweavers, and I havesometimes liad difliculty in positively identifying the speeies whose habits I have I hope that I have not erred in many cases; c(U-tainly not in enougli to materially allbctmy statements and conclusions. (Ill) 112 AMERICAN SPIDERS AND THEIR Fig. 107. Cocoons of Theridiura tepidarioruni. hung in her qq\ jj^ sllSDGsnare. (About natural size.) clings to her web by one long fore leg, while with other legs she revolvesher cocoon, using the hind legs, as is. customary, to draw out the spinningstuff. This issues in numerous diverging filaments, which bunch up in minute loops as the abdomen descends, and are beaten downsmooth by the sjiinnerets. Our widely distributed Latro-dectus mactans^ quite resemblesTepidarioruni in cocooning habit;but its ovoid cocoons are larger,being a full half inch at the longeraxis, and somewhat more spheri-She makes at leastas many as four or five serpentinum Hentz ^ is one of our common Lineweaving spi-ders, whose snares are found in dimly lighted cellars and in rooms aban-doned or rarely used. In the angle of a window or wall t
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectspiders, bookyear1890
