American spiders and their spinningworkA natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . and often suspended upon a similar trans-verse cord. (See Figs. 85, 86.) When the cocoons areopened in October, the spiderlings are found fully de-veloped, lively, and ready to escape. They resemble theadult form in markings. The cocoons are sometimes separated from each other,as at Fig. 86, but again are all overlaid, Fig. 87, beinglashed together by the band of threads upon which theyare strung. Occasionally, the spider will spin her tent
American spiders and their spinningworkA natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . and often suspended upon a similar trans-verse cord. (See Figs. 85, 86.) When the cocoons areopened in October, the spiderlings are found fully de-veloped, lively, and ready to escape. They resemble theadult form in markings. The cocoons are sometimes separated from each other,as at Fig. 86, but again are all overlaid, Fig. 87, beinglashed together by the band of threads upon which theyare strung. Occasionally, the spider will spin her tentbeneath the lowest cocoon of the series, instead of theusual leaf or other debris, and will be found backed upagainst the same, holding to the trapline of her snare.(Fig. 90.) The full page cut (Fig. 85) shows Labyrin-theas cocoons strung in natural site, above and behindthe leaf-roofed tent. The mother begins to spin her cocoons in August,adding one every week, or thereabouts, until the tale is complete. Thesuspensory cords that support the cocoon string are strong, thick, and of apure white color. I have found numbers of the empty cocoon shells in. Fig. 89. Two overlaidcocoons of Labyrin-thea, showing thecord i, and ii, o, x,upon which they arestrung. (Natural size) 102 AMERICAN SPIDERS AND THEIR SPINNINGWORK. the early spring, hanging intact iii)on the buslies where thej^ had beenplaced, although, of course, the snare had entire!} disai)peared. The Tailed spider, Cyclosa caudata, differs from Labyrinthea in the mode of hanging her string of egg sacs. Tliis is suspended within tlie limits of her orb, above the central space, along the line of the ^^?, ^ |)cri)endicular. As the cocoons increase in number, the adiacent |->Q 11 (-1 Q +• O 1 J. J radii and the connecting sjiirals are cut out, leaving a clear seg-ment resembling that in the snare of Zilla, in the middle of which thecocoon string hangs. (Fig. 92.) The number of cocoonsappears to vary much ; I have usually foun
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectspiders, bookyear1890
