American spiders and their spinningworkA natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . Fiu. 101. Cocoon of Basilica spider; Fici. 100, \^- ^ t\ i t \ k ? ? • i • the case open to show the black < J ig- 104.) Our American species appears m tinsegg ball; Fig. 101, the ball open respect to liave tlic Same habit as the European to show the inside structure. __, species, Uloborus walckenaerius. This mode of disposing of the cocoon, however, cannot be universal,for I possess a specimen, received from Dr. George Marx, which is st
American spiders and their spinningworkA natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . Fiu. 101. Cocoon of Basilica spider; Fici. 100, \^- ^ t\ i t \ k ? ? • i • the case open to show the black < J ig- 104.) Our American species appears m tinsegg ball; Fig. 101, the ball open respect to liave tlic Same habit as the European to show the inside structure. __, species, Uloborus walckenaerius. This mode of disposing of the cocoon, however, cannot be universal,for I possess a specimen, received from Dr. George Marx, which is stretchedalong a little twig, to which its orl) \\-as attached, at a point slightly aliovethe cocoon string. (Fig. 105.) Hentz describes the cocoon of Uloborus inammeatus as tapering at bothends, in color whitish, with veins of brownish black, and with many smalltubercl&s. He collected it in Alaliama in diy places.* . VI. Tlie division liere indicated Intween species haljitually making a singlecocoon and species habitually .spinning several is, on the whole, a naturalone; but there are certain facts to be noted which throw a measure of. 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 SPINNINGWORK.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectspiders, bookyear1890
