. American spiders and their spinningwork. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . ider plied her industry. hoop. (After Wilder.) -nr-i i • 02 • ii T -i. • v ? rrof. Wilder is surhciently explicit in his description to allow us to present the diagramatic or restored web, Fig. 140, as apjiroacliing the characteristic form in natural site. Tt thus closely approximates that of Ei)eira triara- nea and Zilla. The spirals do not form complete circles, but are looped the radii, in a manner already described, and in s
. American spiders and their spinningwork. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . ider plied her industry. hoop. (After Wilder.) -nr-i i • 02 • ii T -i. • v ? rrof. Wilder is surhciently explicit in his description to allow us to present the diagramatic or restored web, Fig. 140, as apjiroacliing the characteristic form in natural site. Tt thus closely approximates that of Ei)eira triara- nea and Zilla. The spirals do not form complete circles, but are looped the radii, in a manner already described, and in sjiinning them the spider does not move around the web, but returns upon her course from one side to a corresponding point on the other. The web thus made is strong enough to support a light straw hat when hung up-on it. Gosse speaks of the immense snares of Nephila as one of tlie obstructions to free travel maica j^^ ^|^^ woods of Jamaica. Nephila: Gosse. These, he says, are in-fested with the great long .. -Ill £3 li-HO. A diagramatic snare of Nephila, composed from bodied spider with brush tutted the descriptions and sketches of Prof. Proceedings Amoriciui Association, 1873, page 2G5. 2 This has led Emerton, Struc-ture and Haljits of Spiders, \>age 6G, to the erroneous state-ment that her snare consists of loops runniiifr round about ((uarter of a circle. Prof WildiT, in his paper, Proceediufrs .ieiican .Association, , page 272; alsoGalaxy, page 111, ISfii), and on the Triangle Spider, Popular Science AInnthly, ij:e 653,1875, gives an outline cut of Plumefoots orb, which corresponds with that of Fig. 140. COMPOSITE SNARES AND SECTORAL ORBS. 149 feet, Nepliila clavipes. If one succeeds in pushing his way with muchdifheulty through tlie briers, his face is pretty sure to come into contactwith the strong threads of these spiders, which are spread over the bushesand between trees along the roadside. The web is perpendicular, the [larton which the spider si
Size: 1462px × 1709px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, bookidamericanspid, bookyear1889