. American spiders and their spinningwork. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . icata. From, f ,^ 1 c .1 11 mi a sketch by Mr. Emerton. part or the dorsum ot the abdomen, ihey are situated near the margin and overhang the sides and the cephalotho-rax. They are not hard or leathery like the spinous processes upon Acro-soma and Gasteracantha, but have nearly the consistency of the abdominalintegument. To this group belongs the Diadem Spider, Epeira diademata,so familiar in European landscapes, and known popularly as
. American spiders and their spinningwork. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . icata. From, f ,^ 1 c .1 11 mi a sketch by Mr. Emerton. part or the dorsum ot the abdomen, ihey are situated near the margin and overhang the sides and the cephalotho-rax. They are not hard or leathery like the spinous processes upon Acro-soma and Gasteracantha, but have nearly the consistency of the abdominalintegument. To this group belongs the Diadem Spider, Epeira diademata,so familiar in European landscapes, and known popularly as the CrossSpider or Garden Spider. I have specimens of this species collected in theUnited States, one as far to the north and west as Minnesota. The spiderundoubtedly has found lodging upon our shores, probably as an importa-tion by immigrants from Europe, but is very rare as yet. Others of this group are Epeira gemma, a fine large species, whichinhabits the Pacific slope, and as far eastward at least as Utah; alsoEpeira cinerea, a large gray species, in many respects resembling E. gemma,which ranges the Northern Atlantic slope and the Adirondack Mount-. 22 AMKRICAN SriDEKS AND flllClK SIINNINGWOKK. J\i tlie same fjroup belong Emertons Epeira sylvatica, and my Tlie species are closely related to each other and to theEnrojjean Ejieira angulata and E. bicornis. Systematists mayAngu a a j-,^f^p,. ^^^^?^\^. them all into two or three species. The hal)its ofthe entire gronp, as jvidged l)y the species which I have stuclie<l,are like those of Insnlaris and Trifolinm as above described. They ilweliin silken tents or nests of rolled leaves, and spin webs of the type shownat Figs. 101 and 107. Epeira stellata is remarkable for the formation of its abdomen. Aroundthe sides are inserted a number of spines, one of which projects promi-nently over tlie ceiilialdtluirax, which gives the creature a striking andweird appearance. 1 have taken it, especially the
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Keywords: ., bookcentury1800, bookdecade1880, bookidamericanspid, bookyear1889
