. Elementary zoology. Zoology. 236 ELEMENTARY ZOOLOGY corners and on plants; and finally orb-weavers (Epeiridae) (fig. 100), the host of variously colored and patterned stout-bodied garden-spiders which spin the beautiful sym- metrical circular webs familiar to all (fig. 101). If a complete uninjured orb web be examined it will be found to consist of a small central hub either open or closed, from which run radii to the outer edges of the web. Around the hub is an open or free zone, and farther out a spiral zone, so called because a line running in close. Fig. 100.—Argiope sp., a large orb-wea


. Elementary zoology. Zoology. 236 ELEMENTARY ZOOLOGY corners and on plants; and finally orb-weavers (Epeiridae) (fig. 100), the host of variously colored and patterned stout-bodied garden-spiders which spin the beautiful sym- metrical circular webs familiar to all (fig. 101). If a complete uninjured orb web be examined it will be found to consist of a small central hub either open or closed, from which run radii to the outer edges of the web. Around the hub is an open or free zone, and farther out a spiral zone, so called because a line running in close. Fig. 100.—Argiope sp., a large orb-weaver (Epeiridae). (From Jenkins and Kellogg.) spiral turns fills in the space between the radii. This is the real prey-catching part of the snare, and the silken line here is sticky, while the radii and some other parts of the web are made of silk that is not sticky. The web is supported by strong foundation-lines, attached to leaves, stems, or whatever is firm in the neighborhood of the web. The spider either rests on the web, usually in the centre, or lies concealed in a nest or tent near at hand from which a special path-line runs to the centre of the web. The building of one of these orb webs is a great. 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 Kellogg, Vernon L. (Vernon Lyman), 1867-1937. New York : H. Holt and company


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1902