Immagine di archivio da pagina 216 della American ragni e loro la filatura. Ragni americani e il loro lavoro di filatura. Una storia naturale dell'orbweaving ragni degli Stati Uniti, con particolare riguardo alla loro industria e abitudini CUbiodiversity1121211-9810 Anno: 1889 ( COCOON VITA E BABYHOOD. 211 diversi nidi costruiti da un Vireo, il white eyed Vireo probabilmente (Vireo novo- boracensis), che sono in gran parte composte da spessi teloni prese ap- parently da bozzoli di vari Orhwcavers e screziato Agalena, che possono tutte sono state abbandonate di bozzoli. Tuttavia, è estremamente probabile che
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Archive image from page 216 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 ( COCOON LIFE AND BABYHOOD. 211 several nests built by a Vireo, the white eyed Vireo probably (Vireo novo- boracensis), which are largely composed of the thick sheetings taken ap- parently from the cocoons of various Orhwcavers and the Speckled Agalena, which may all have been abandoned cocoons. However, it is extremely probable that some of them were filled with young spiders when seized. Such seizure would not necessarily prove fatal to the young, as I have demonstrated by experiment, substituting my fingers for the bill of a bird. At the first pull, or as soon as a fracture had been made, a number of the wee fellows would run from the cocoon hurry-skurry and take refuge under surrounding objects. When a pinch or two more had widened the fracture so as to allow the brood to escape freely, and the hand was swung upward through the air as nearly as might be after the manner of the supposed robber bird, a long trail of young spiders floated behind, all hanging on as for dear life to the filaments that streamed backward like a kite tail, and which were the united threads of the whole evicted ten- antry forced into the utmost activity of tlieir spinning organs. Nearest to the fingers tlie filaments were thickly placed, and here the young balloonists were massed. Further on they were less in number, and so to the end of this curious pennant, where one or two clung to the taper- ing point of gossa- mer. Of course, dui- ing the rapid motion some of the spider- lings were detached from the mass and floated away upon single or manifold strands. It is thus easy to see that a bird carrying a torn cocoon under similar circumstances might distribute a large portion of a brood along the course of her flight without dest
