Cuperfamily Argiopoidea 



half as large as E. marmorata, measuring a little more than one 

 eighth inch in length. The colour is pale and less yellow than 

 in E. marmorata; the abdomen has an indistinct pattern con- 

 sisting of a broken middle line and, on each side of this, a row of 

 spots. 



Genus PEDANOSTETHUS (Ped-a-nos-te'thus) 



The fourth pair of legs are a little longer than the first pair, 

 and all the legs are comparatively short and robust; the chelic- 

 erae are robust, being thicker than the femora of the first pair 

 of legs; the lower margin of the furrow of the chelicerse is toothed; 

 and the sternum does not extend between the posterior coxae. 



Five species have been found within the limits of the United 

 States; of which the following is the most common. 



b. 



Fig. 372. EPIGYNUM 



OF PEDANOSTETHUS 



RIPARIUS (after 



Emerton) 



Fig. 373- 

 PALPUS OF MALE OF 

 PEDANOSTETHUS 

 RIPARIUS (after Emerton) 



Pedanostetbus riparius (P. ri-pa'ri-us).— - The length of the 

 body is about one sixth inch. The cephalothorax and abdomen 

 are about equal in length. The cephalothorax is smooth and 

 shining and darkened a little toward the head. The abdomen 

 is gray, generally lighter than the cephalothorax. and covered 

 with dark gray hairs. The guide of the epigvnum is pear-shaped 

 in some individuals (Fig. 372, a), oblong in others (Fig. 372. b). 



365 



