. Elements of zoology, to accompany the field and laboratory study of animals. Zoology. 106 ZOOLOGY Next we have certain spiders which build irregular webs. Such are the line-weavers. To this group belong the common cobweli spiders of our cellars and outhouses. The web consists of a fine irregular mesh ynth strands running above and below it in various directions. The spider stands below the main part. Fig. 108.—Web of a tube-weaver Tegenaria ; looking down upon the web, which is in a corner between two vertical walls. The tube is in the angle. Photo. l5y W. H. C. P. of the web, hanging back d
. Elements of zoology, to accompany the field and laboratory study of animals. Zoology. 106 ZOOLOGY Next we have certain spiders which build irregular webs. Such are the line-weavers. To this group belong the common cobweli spiders of our cellars and outhouses. The web consists of a fine irregular mesh ynth strands running above and below it in various directions. The spider stands below the main part. Fig. 108.—Web of a tube-weaver Tegenaria ; looking down upon the web, which is in a corner between two vertical walls. The tube is in the angle. Photo. l5y W. H. C. P. of the web, hanging back downward. Such a web serves to entangle and hold insects upon which the spider preys (Figs. 109, 109 a). Finalljr the orb-weavers (Orbitelarise') spin a web Ijdng mostly in one plane and having a geometric form often of re- markable perfection and symmetry. Such extraordinary struc- tures deserve careful attention. Foundation fines (Fig. 110) of unusual strength are first laid down to form the outer frame 1 orhis, circle ; tela, 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 Davenport, Charles Benedict, 1866-1944; Davenport, Gertrude Anna Crotty, 1866- joint author. New York, Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1911
