Archive image from page 138 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 CUbiodiversity1121211-9742 Year: 1889 ( Fio. 124. Fig. 126. Illiutrations of the orientation of the trapline, and width of the open sector. it is, its use being precisely that of the trapline fig. m. Ben shaped tent in wMch in full orb making spiders. Near the point of the trapiine terminates, attachment to the hub this is deltated, diverging into several lines that , are
Archive image from page 138 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 CUbiodiversity1121211-9742 Year: 1889 ( Fio. 124. Fig. 126. Illiutrations of the orientation of the trapline, and width of the open sector. it is, its use being precisely that of the trapline fig. m. Ben shaped tent in wMch in full orb making spiders. Near the point of the trapiine terminates, attachment to the hub this is deltated, diverging into several lines that , are fastened at various points to the meshes of the hub. The other end of the trapline enters a little bell shaped silken tent swung amid a retitelarian maze, where it is held by the spider. (Fig. 126). Sometimes several spiral lines will cross the upper part of the open sector (Fig. 127); again one may see the variation shown at Fig. 128, where two radii (dr dr) detached from the hub (H) are lifted out from the plane of the orb, leaving an open space (0) through which the trapline (T) passes. Another variation differs from this in having but a single de- tached radius (dr) to which cross loops (cl) pass from the marginal radii R, R. (Fig. 129.) When weav- ing in the spirals this spider does not pass entirely around the orb, as is the case with the full orb makers in the major part of their snare, but moves back and forth between the radial borders (Fig. 125, c and d) of the open sector, spinning her spirals in successive horseshoe loops. This is the method observed
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