. 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. COMPOSITE SNARES AND SECTOUAL ORBS. 141 It is certainly interesting to find these Orbweavers possessing in so marked a degree the spinning habit of tlie tribe most closely related to A^ themselves in general structural characteristics, altliough it may not be possible to munity of habit and the com of these snares and their wcav the weavers of the Retitelarian hereafter when I come to con of the Basilica spider; but it tha
. 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. COMPOSITE SNARES AND SECTOUAL ORBS. 141 It is certainly interesting to find these Orbweavers possessing in so marked a degree the spinning habit of tlie tribe most closely related to A^ themselves in general structural characteristics, altliough it may not be possible to munity of habit and the com of these snares and their wcav the weavers of the Retitelarian hereafter when I come to con of the Basilica spider; but it that they both possess very de- cidedly the Epciroid character- istics. In the meantime, there is another interesting peculiarity of Triaranea's web which needs to be noted, namely, the bell shaped den or tent of white silk hung amidst the maze (Fig. 131), and connect- ed with the trapline. A struct- ure of this kind, within which the spider constantly dwells, is not confined to this species. Many Orbweavers have a sim- ilar tent or some flossy uphol- stered crevice, hole, or leafy nest, within which they con- ceal themselves frequently or habitually. Triaranea often shows a remarkable addition to this ordinary bell shaped tent. There is an open and quite distinct tube attached to the mouth of the tent, from which it to the centre of the free radius is fasten runs through or along the floor ally kept taut, and is clasped fore feet of the spider. This feet, shortened, or even whol ly found as in Fig. 132. In Tube- weaving Tendency trace a close relation betwecji the com- munity of structure. The affinity ers with the spinningwork and tribe will be more fully traced sider the Domed orbweb may be here remarked. reaches almost orb to which the ed. The free radius of this tube, is continu- at the upper end by the 'uiarl„ea!":h::[„t u™ gangway is at times imper- looped spirals and eion- ly omitted, but is frequeut- gated lower part of the . ^ orb. this bell shajied den and co
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectspiders, bookyear1889
