1908.] NATURAL SCIENCES OF PHILADELPHIA. 241 



1902. Lycosa arenicola Scudder, Montgonierv, Proe. Acad. Nat. Sci. Pliila., 



p. 550, PI. XXIX, fig. 13. 

 1904. Geohjcosa arenicola, Montgomery, Proc. Acad. Nat. Sci. Phila., p. 



299. 



Known localities. — Massachusetts, Rhode Island!, Connecticut!, New 

 York (Long Island!), New Jersey, District of Columbia, Pennsylvania, 

 Maryland, Virginia, Indiana. 



This species is our best known turret builder. Its burrows are com- 

 monl}^ from 10 to 12 inches deep, often one-half inch wide, and are 

 surmounted by turrets usually one and one-half inches in height. ^ ^ 



Lyoosa fatifera Hentz, 1842. 



' (Bost. J. N. Hist., IV, p. 229, PI. 2, fig. 8.) 



Female. — Cephalothorax with dark red-brown tegument, often 

 blackish about eyes ; clothed with tawny colored or rufous pubescence 

 and showing no markings. Chelicerce dark reddish brown, with brown 

 or grayish-brown pubescence, rufous distally along furrow. Labium 

 and endites reddish brown, lighter at tips. Sternum and coxce of leg 

 beneath light or yellowish brown, clothed with gray pubescence. 

 Legs reddish brown; the femora beneath much lighter, yellowish; the 

 tibi£e, tarsi and metatarsi commonh^ much darker, especially in 

 anterior pairs clothed with grayish pubescence; scopulse brown. 

 Abdomen above dark brown, clothed with dense brown or tawny pubes- 

 cence; venter with light, sometimes grayish-brown pubescence. 

 Spinnerets brown. Epigynwn dark reddish brown. 



Cephalothorax very wide in front, nearly five-sixths as wide as behind, 

 the sides but little bulging. In profile the cephalothorax is seen to 

 have pars cephalica large and convex; highest between eyes of third 

 row and dorsal groove ; posterior declivity long, the median furrow being 

 upon its upper portion. Face appearing rather high, but only slightly, 

 if at all, more than half the length of the massive chelicerse; sides 

 convex and slanting as usual. First row of eyes as long as second, a 

 little procurved; anterior median eyes more than their radius apart, 

 as far from the anterior lateral eyes which are smaller; anterior lateral 

 eyes more than their diameter from eyes of the second row, more than 

 once and a half their diameter from front margin of clypeus ; anterior 

 median eyes their diameter from eyes of second row, or nearly so; eyes 

 of second row their diameter apart; quadrangle of posterior eyes about 

 one-sixth the length of the cephalothorax. Legs rather short and 

 stout; the fourth pair two and one-half times the length of the cephalo- 

 thorax; the second pair twice as long as the cephalothorax; tibia + 

 patella IV shorter than the cephalothorax, same length as tibia -(- 



