Superfamily Argiopoidea 



The great length of the legs causes this spider to resemble, 

 somewhat, a harvestman (Pbalangium), and suggested the specific 

 name. It is a common house-spider, especially in the warmer 

 regions; but it is also found in the North. It prefers cellars and 

 other dark locations. 



It spins a very large, loose web. The spider hangs in its 

 web with the abdomen directed upward; and when alarmed 

 shakes its web violently or swings itself around rapidly. The 

 egg-sac is exceedingly thin, in fact it is invisible except on close 

 examination. The eggs are carried by the chelicerae, as shown 

 in the figure. 



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Genus PHOLCOPHORA (Phol-coph'o-ra) 



All of the eight eyes are present ; the anterior row is procurved ; 

 the anterior median eyes are but little smaller than the anterior 

 lateral; the posterior row of eyes is moderately recurved. 



Only one species has been described. 



Phohophora americana (P. a-mer-i-ca'na). — The length of 

 the body is a little more than one twelfth inch. The cephalo- 

 thorax is pale yellowish, darker on the head, and with black 

 spots around the eyes. The abdomen is pale beneath and dark 

 gray above. The body is clothed with large stiff bristles, which 

 are most numerous on the abdomen. 



This species was discovered in Colorado. 



Genus PHYSOCYCLUS (Phy-soc'y-clus) 



The eight eyes are all present; the anterior median eyes are 

 several times farther removed from the posterior median eyes 

 than they are from the anterior lateral; the posterior row of eyes 

 is slightly recurved; the femur of the first pair of legs is shorter 

 than that of the fourth. 



Only two species of this genus are found in this country; 

 and one of these is restricted to the Southwestern States. The 

 more common species is the following: 



Physocyclus globosus (P. glo-bo'sus). — The length of the 

 body of the female is about one sixth inch. The cephalothorax 

 is broader than long; the eyes are borne on a prominent elevation; 

 the abdomen is as high as long. The cephalothorax is yellow 



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