Spiders and Their Near Relatives 



the chelicerae are pale in colour. It measures about one twelfth 

 inch in length. The colour is pale yellowish with the claws of 

 the chelicerae reddish brown. It was found in California. 



Taracus pallipes (T. pal'li-pes). — In this and in the following 

 species the dorsum of the abdomen is smooth and the chelicerae 

 are dark. In this species the chelicerae are smooth. The cephalo- 

 thorax is pale, with a broad, black, 

 median stripe, as wide as the base of 

 the chelicerae; the abdomen is dark gray 

 above with black spots; the venter is 

 pale, darker near the tip. The length of 

 the body is one fourth inch; the chelicerae 

 are one half longer. This species occurs 

 on the Pacific Coast; it was described 

 from the State of Washington. Fig. s8. taracus packardi 



Taracus packardi (T. pac-kar'di). — 

 The dorsum of the abdomen is smooth and the chelicerae are 

 dark, as in the preceding species. But the chelicerae are rough 

 and armed with very distinct spines on the basal segment. The 

 length of the body is one fifth inch. This species has been found 

 in. Colorado and in New Mexico (Fig. 58). 



Family NEMASTOMATID/E (Ne-mas-to-mat'i-dae) 



In the Nemastomatidae the sternites of the abdomen are free, 

 overlapping, and without a median divisional sulcus; the first 

 and second abdominal sternites are narrowed anteriorly and coni- 

 cally produced between the coxae, and only overlapping the 

 posterior two pairs to a relatively small extent; and the eighth 

 or penultimate tergite is large and greatly expanded laterally. 



Only two genera of this family have been found in the United 

 States; these can be separated as follows: 



A. Fourth segment of the palpus much thickened. P. 77. 



Phlegmacera 

 AA. Fourth segment of the palpus scarcely thickened. P. 78. 



Nemastoma 



Genus PHLEGMACERA (Phleg-mac'e-ra) 



In this genus the fourth segment of the palpus is much 

 thickened. Three species h:.ve been described. 



77 



