Superfamily Argiopoidea 



Genus CYB/EUS (Cy-bae'us) 



The genus Cybaeus is our only representative of a group of 

 genera that differ from other agelenids in having the fore spin- 

 nerets contiguous and preceded by a colulus. The hind spinnerets 

 consist each of a single segment and are not longer than the 

 fore spinnerets. The posterior eyes are in a straight or slightly 

 recurved row. The chelicerae are very robust and strongly convex 

 at the base. 



Seven species of this genus have been described from the 

 United States; but I find no account of the habits of any of 

 them. The three known European species are found in the 

 forests of mountainous regions; and their webs, which are made 

 either in the cracks of trees or among stones, are composed of a 

 large and irregular mesh. 



Of our seven species, one occurs in the East; the others are 

 found on the Pacific Coast. 



Cybceus giganteus (C. gi-gan'te-us). — The length of the 

 body is nearly one half inch. The cephalothorax is a shining, 

 dark red-brown. The abdomen is covered with short black 

 hairs; the dorsum and sides are dark grayish black, with a short, 

 median, basal, light stripe, not reaching to the middle of the 

 dorsum, and on each side of this two oblique light spots. 



This species has been found in New York and in North 

 Carolina. 



Genus AG ELENA (Ag-e-le'na) 



Both rows of eyes are strongly procurved, so much so that 

 the posterior lateral and the anterior median form nearly a 

 straight line (Fig. 663). The cephalothorax is narrow in front; 

 the labium is longer than wide; the pos- 

 terior coxae are contiguous; the apical 

 segment of the hind spinnerets is at least 

 as long as the basal segment; and the { q£ 

 anterior tibiae are sparingly spined. 



Four species of this genus have been 

 described from the United States; of these 



\i .III \ \ VIA IA 



the one described below is the most com- 

 mon; in fact it is the most common spider of our fauna. Two 

 other species are found on the West Coast and one in New .Mexico. 



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