Archive image from page 122 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 ( WEAVERS OF ROUND WEBS. 123 perpendicular. The heavy spider hanging on the under side of the close meshed hub pulled the net down at its centre as the snares were swayed by the wind. The upper foundation lines were quite strong and usually of great length, being from three to five feet, and in one case twelve feet long. The orb itsel
Archive image from page 122 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 ( WEAVERS OF ROUND WEBS. 123 perpendicular. The heavy spider hanging on the under side of the close meshed hub pulled the net down at its centre as the snares were swayed by the wind. The upper foundation lines were quite strong and usually of great length, being from three to five feet, and in one case twelve feet long. The orb itself is often about eighteen inches in diameter, and is a conspicuous object to one driving by it upon the road. The concentric spirals are numerous and placed in with great beauty and regularity. They extend entirely around the snare, giving it a more circular appear- ance than is common with those webs which have looped spirals below the hub, thus giving the orb an elongated form. For the most part the hub is closely meshed, but in one case was found open. My own observation of the snare of Gasteracantha is limited to a single indi- vidual seen in Texas in the neighborhood of Aus- tin. This web was spun within a triangular space of two feet or more in length from top to bottom. This space was marked off by foundation lines, which were decorated in a pecu- liar manner, as represented in Fig. 110. This decora- tion consisted of tufts of flossy white silk from one- eighth to one-fourth inch long. They were spread along the outer foundation lines throughout nearly their entire length. Several were also placed on the two inner supports of the orb. Two radii, one above and another below the centre, were similarly Flossy decorated, and several tufts were grouped around the hub, which .™. , was open. The number of these flossy tufts on one foundation line was twenty-one; on the other fifteen. The spider hung at the centre of her web, which was vertical, and consisted of twenty-three r
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