1908.] NATURAL SCIENCES OF PHILADELPHIA, 239 



Jersey, Pennsylvania, District of Columbia, Alabama, Georgia!, 

 Indiana, Kansas!. 

 A well-known species of burrowing habits. 



Lycosa arenioola Scudder, 1877. 

 (Psyche, 2, p. 2.) 



Female. — Tegument of cephalothorax dark reddish brown to blackish, 

 scarcely lighter above ; a median lighter band a little wider than third 

 eye row in front, strongly narrowed anteriorly to dorsal groove and 

 usually expanding again back of groove; the band chiefly produced 

 by a finer gray or white pubescence intermixed with coarser brown, 

 the tegument beneath being usually but little lighter than on sides; 

 sides of cephalothorax covered with brown pubescence, gray hairs 

 scattered but showing .more abundantly below, especially posteriorly. 

 Chelicerce dark reddish brown to nearly black, clothed with a dense 

 coat of rusty brown colored pubescence, fringe along furrow of 

 chelicerae brighter, reddish or coffee colored. Labium and endites dark 

 reddish brown, paler distally. Sternum dark reddish brown to nearly 

 black. Anterior coxce of legs dark brown to nearly black, posterior 

 coxae lighter. Legs reddish brown, the anterior pairs darker than the 

 posterior; the femora, patellae and tibiae of the first and second legs 

 nearly black beneath; distal ends of posterior tarsi and metatarsi 

 usually darker ; legs clothed with dense coat of mixed gray and brown 

 pubescence and longer dark brown bristles, scopulae brown. Abdomen 

 densely pubescent; a dark brown median band on dorsum reaching to 

 the spinnerets behind, which just in front of middle has on each side 

 a broad indentation, and which has behind the middle a series of nar- 

 row paired indentations ; the band covered or largely formed by dark 

 brown pubescence. Sides of dorsum grayish brown, the pubescence 

 being brown and gray intermixed, the brown more abundant above; a 

 dark brown band of same color as median one crossing each antero- 

 lateral angle and running obliquely backward and downward, meeting 

 the venter back of middle. Vejiter brown to dark brown, usually a 

 darker band from genital furrow to spinnerets. Epigynum dark red- 

 dish brown. Spinnerets brown. 



Cephalothorax wide in front ; in profile second eyes seem to be lower 

 down on face than usual, highest at third eye row ; pars cephalica convex ; 

 posterior declivity beginning on pars cephalica a considerable distance 

 in front of thoracic furrow, making the decHvity very long and the pos- 

 terior portion of cephalothorax very low and exagp;erating apparent 

 height of front part. Face moderate in height, not fully half the 



