. Journal of researches into the natural history and geology of the countries visited during the voyage round the world of 'Beagle,' under the command of Captain Fitz Roy. inParaguay, which Walckenaer thinks must be a Theridion, butprobably it is an Epeira, and perhaps even the same species withmine. I cannot, however, recollect seeing a central nest aslarge as a hat, in which, during autumn, when the spiders die,Azara says the eggs are deposited. As all the spiders which Isaw were of the same size, they must have been nearly of thesame age. This gregarious habit, in so typical a genus


. Journal of researches into the natural history and geology of the countries visited during the voyage round the world of 'Beagle,' under the command of Captain Fitz Roy. inParaguay, which Walckenaer thinks must be a Theridion, butprobably it is an Epeira, and perhaps even the same species withmine. I cannot, however, recollect seeing a central nest aslarge as a hat, in which, during autumn, when the spiders die,Azara says the eggs are deposited. As all the spiders which Isaw were of the same size, they must have been nearly of thesame age. This gregarious habit, in so typical a genus asEpeira, among insects, which are so bloodthirsty and solitarythat even the two sexes attack each other, is a very singular a lofty valley of the Cordillera, near Mendoza, I foundanother spider with a singularly-formed web. Strong linesradiated in a vertical plane from a common centre, wherethe insect had its station ; but only two of the rays wereconnected by a symmetrical mesh-wTork ; so that the net,instead of being, as is generally the case, circular, consistedof a wedge-shaped segment. All the weia$ were similarlyconstructed. 1 Azaras Voyage, vol. i. p. darwins pamuo feronia. 1833, NOW called ageroma feronia,


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