. 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. Spiders. 202 AMERICAN SPIDERS AND THEIR Fig. 196. Hay spider. Action when an insect is taken. S, spider; In, insect. Theridiosoma, as represented at Fig. 194, or again, as shown at Fig. 195, we observe tliat if the fore feet, 1, 2 (Fig. 194) are released suddenly from the trapline, T, the whole body shoots backward, although still toward the snare, as with Hyptiotes. This was the ac- tion which I observed. The determinati
. 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. Spiders. 202 AMERICAN SPIDERS AND THEIR Fig. 196. Hay spider. Action when an insect is taken. S, spider; In, insect. Theridiosoma, as represented at Fig. 194, or again, as shown at Fig. 195, we observe tliat if the fore feet, 1, 2 (Fig. 194) are released suddenly from the trapline, T, the whole body shoots backward, although still toward the snare, as with Hyptiotes. This was the ac- tion which I observed. The determination was finally accomplished by first carefully sketching the arrangement of the basket stretched between the feet (2, 3, 3, 4, 4, Fig. 195). With this chart in one amg^^^^w^^^^^^m hand, and in the other hand a magnifying WISS^^BS^^^^^^mM glass focused upon the feet, I watched until favored with several successive and unsuc- cessful springings of the net. As the spider only leaves her seat when she thinks that an QKS^^^^^Hj^g^n insect is well entangled, and again bows her rnKS^l^^S^^sSSaB i^^^ ^y pulling on the trapline if no prey be ensnared, the above conditions enabled me to compare my chart of the basket, with the basket itself as seen under the glass. I found that the outlines on the paper and the lines under the animal's feet ex- actly corresponded. There had therefore been no change in the relative positions of the hind feet, mandibles, and palps, and perhaps also of the second pair (2) of feet. There had been an actual (not seeming) motion of the body with and in the direction of the snare, and this had been caused by releasing the first pair of legs (1) from the trapline. The only actual motion, therefore, was the slight hitch forward produced by the elasticity of the axes of the rays and other parts of the snare behind the aranead. The importance of this determination seems greater from the fact that I had at first concluded that tlie Ray spider actually operated her s
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectspiders, bookyear1889
