. 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. Fig. 319. Fig. 318.' Nests of Theridium (Fig. 318), and the Bag worm (Fig. 819). the behavior of Theridium riparium when she builds the nests described upon the preceding pages. (Fig. 318.) A like reflection is suggested by the work of the well known bag worm, or basket worm, Theridopterix ephemerseformis. (Fig. 319.) This is the caterpillar of a species of moth, sometimes known as the house Theridi- builder moth (Oiketici). Th
. 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. Fig. 319. Fig. 318.' Nests of Theridium (Fig. 318), and the Bag worm (Fig. 819). the behavior of Theridium riparium when she builds the nests described upon the preceding pages. (Fig. 318.) A like reflection is suggested by the work of the well known bag worm, or basket worm, Theridopterix ephemerseformis. (Fig. 319.) This is the caterpillar of a species of moth, sometimes known as the house Theridi- builder moth (Oiketici). The insects are also called Canei^horse, umand ^^ basket carriers, and the Germans call them Sacktriiger, or Worm ^^^^ bearer. The baskets of the above species are among the most familiar objects in this geographical district, and may be seen hanging in multitudes to the limbs of trees after the leaves have fallen in autumn. I have been greatly interested in studying the whole process by which these interesting objects are made, and have described it elsewhere.'^ • The part above the horizontal line on the left of the figure was made of pellets of clay in natural site; that below of material artificially supplied. " Science Gossip," January, 1868, page 12, sq. » In my " Tenants of an Old Farm," Chapter XIX., " Housekeeping in a ;. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original McCook, Henry C. (Henry Christopher), 1837-1911. [Philadelphia] The Author, Academy of Natural Science of Philadelphia
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectspiders, bookyear1889
