Superfamily Argiopoidea 



species with figures of its turrets, one of which is reproduced here 

 (Fig. 722). The species is widely distributed. 



Lycosa fattjera (L. fa-tif'e-ra). — This species is dark brown 

 above and somewhat lighter below; the cephalothorax is without 

 distinct markings and the abdomen lacks the dark band seen in the 

 preceding species. It is a burrowing and turret building species, 

 and is widely distributed. Its habits were described by Mr. J. 

 C. Hancock ('99) who called it the castle-building spider, and 

 described it under the name Lycosa domijex. 



Lycosa carolinensis (L. car-o-li-nen'sis). — The cephalothorax 

 is clothed with brown and gray hairs and is usually without 

 distinct markings; but in some individuals there is a gray supra- 

 marginal band on each side and 

 a similar median one along the 



Fig. 721. 

 EPIGYNUM OF L. NIDIFEX 



Fig. 722. 

 TURRET OF L. NIDIFEX (after Marx) 



dorsum, widening from behind anteriorly. The tegument of the 

 abdomen is light brown covered above with long brown to grayish 

 brown pubescence, except over the dark marks which are clothed 

 and made more distinct by black hair; these marks are as 



the 

 end 



dorsum a median stripe, 

 and sends out from its 

 lines directed backward and 

 basal line there are several 



follows: on the basal part of 



which is forked at the hinder 



sides several pairs of pointed 



toward the sides; behind the 



chevrons, and often a series of light dots along each side. 



The female attains a length of nearly one and one half inches; 



the male, four fifths of an inch. 



This spider occurs over the greater part of the United States 

 and is the largest member of the Lycosidae found in our territory. 

 The female digs a burrow six or eight inches deep and sometimes 



636 



