Archive image from page 108 of American spiders and their spinning. American spiders and their spinning work. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits CUbiodiversity1121211-9810 Year: 1889 ( loosely, by attaching threads, as is the case of some other spiders that make several cocoons. However, in this respect, the habit may diifer. As a rule these cocoons are stretclied like those of Cyclosa caudata, along the axis of tlie motlier's horizontal orb, and arc thus im- mediately under the maternal i'gM I r'-Sv cure. (Fig. 1
Archive image from page 108 of American spiders and their spinning. American spiders and their spinning work. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits CUbiodiversity1121211-9810 Year: 1889 ( loosely, by attaching threads, as is the case of some other spiders that make several cocoons. However, in this respect, the habit may diifer. As a rule these cocoons are stretclied like those of Cyclosa caudata, along the axis of tlie motlier's horizontal orb, and arc thus im- mediately under the maternal i'gM I r'-Sv cure. (Fig. 103.) In this posi- .nV i'ilBK tion I have seen them in New .Jersey, and thus Mrs. Treat has observed tliem, and so also Mr. Emerton has described them. (Fig. 104.) Our American species appears in this resjject to have the .same habit as the European 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 stretched along a little twig, to which its orb was attached, at a point slightly above the cocoon string. (Fig. 105.) Hentz describes the cocoon of Uloborus mammeatus as tapering at both ends, in color whitish, wdth veins of browni,sh black, and with many small tubercles. He collected it in Alabama in dry places. Fig. 100. Fic;. 101. Cocoon of Basilica spider: Fkj. 100, the case open to sliow tlie black egg ball; Fig. 101, the ball open to show the inside structure. ?5> Fio. 102. Cocoon of Uloborus, enlarged to show the surface points. VI. The division here indicated between species habitually making a single cocoon and species habitually spinning several is, on the whole, a natural one; but there are certain facts to be noted which throw a measure of Fi(i. 103. Cocoon string of Uloborus in position upon the snare. uncertainty around any such generalization. For oxaniplc, it has long been supposed that Argiope cophinaria spins but one cocoon ; and, judging from
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