174 



AMERICAN SPIDERS AND THEIR SPINNINGWORK. 



neighborhood of Nuremberg on the edge of forests, building its snare be- 

 tween young pines. Simon says that the species lives upon dry brambles 

 or in the cavities of old walls, tliat it is always found stretched 

 Uloborus lei^gth^rjgg beneath its snare, and is readily confounded with 

 adjoining objects.^ Uloborus Walckenaerius is one of the 

 spiders inhabiting Palestine, being among those listed from 

 Syria by Mr. Cambridge. 



I have never seen the orbs in any other than a horizontal position. 

 They measure from three to four and five and a half inches in diameter. 



Walck 

 enaerius 



Fi(i. 161. The orb of Uloborus on a laurel bush. The curled spiral thread is represented, and the remnants 



of a former web pushed back to the margin. 



The hub is generally closely and beautifully meshed, like the snare of the 

 Labyrinth spider, and the central space is entirely filled up by concentrics, 

 corresponding with those composing the notched zone in the or- 

 dinary webs of Orbweavers. The radii diverge in the ordinary 

 way, but seem to be of a rather delicate material. In the Juni- 

 ata colony al)ove named many of the webs were surrounded by 

 what api)eared to be the collapsed remains of a former snare. The spiders 



Charac 

 ters of 

 Snares. 



1 " Arachnides de France," Vol. II., page 169. ^ Proc. Zool. Soc, 1872, Part I., patre 279. 



