THE CINIFLONID^, OR CRIBELLATA 



217 



where the abdomen extends over it (fig. 494). The abdomen 

 is slightly notched in front and covers the cephalothorax a 

 quarter of its length. The abdomen is widest and thickest in 

 the front third and has there a pair of humps. The eyes are 

 in two rows, those of the upper 

 row largest and on the top of 

 the head, with the lateral pair 

 farthest back. The front row 

 are on the edge of the head 

 close to the mandibles. The 

 first pair of legs is the longest 

 and is twice as long as the 

 second. It has at the end of 

 the tibia a brush of long coarse 

 hairs. The colors are various 

 shades of brown, from very 

 light to almost black. The 

 cephalothorax has a light mid- 

 dle stripe. The legs have the 

 joints light in the middle and 

 black at the ends, except the 

 first leg, which sometimes has 

 the tarsus and metatarsus 

 white, and the rest of the leg 

 dark brown. The fourth meta- 

 tarsus is curved in on the outer 

 side, where the calamistrum is 

 placed. The male is smaller 

 than the female, the legs are longer, the abdomen is smaller 

 and less distinctly humped, the first legs do not have the 

 brushes on the tibia, and the fourth legs do not have the cala- 

 mistrum. The webs resemble those of Epeira and Tetragnatha, 

 and are horizontal or inclined. They are often left unfinished, 



Fig. 496. Web of young Uloborus in a rasp- 

 berry bush. The lower half of the web 

 is much wider than the upper. A band of 

 silk runs across the middle and draws up 

 with it some of the lower spirals. Half 

 the real size. 



