1904.] NATURAL SCIENCES OF PHILADELPHIA. 301 



a 2 -Dorsal eye area at least one-seventh the length of the cephalo- 

 ' ■ thorax, 3 pairs of spines on the ventral surface of tibia i. 

 ^ l._Posterior margin of chelicera with 4 teeth . . contestata. 

 I) 2 —Posterior margin of chehcera with 3 teeth. .^, , • 



'c, 1 — Cephalothorax smooth, without hairs or with hairs 

 only in the ocular area. . 



(^ I _A distinct broad median and narrow submargmal 

 bands on the cephalothorax, . noduahunda. 

 ^ 2.— Cephalothorax without stripes, . . • ^uhlata. 



c 2 —Cephalothorax with hairs. - 



^ 1 _Median band of cephalothorax narrow, 



helvipes Keyserling, 187b. 



d 2 —Median band of cephalothorax on the anterior half 



about as broad as the ocular area, colors mainly 



gray and white, cinerea 



^ 3 —Median band of cephalothorax in its anterior halt 



about half as broad as the eye area, colors dark. 



g 1 —Median band of cephalothorax not laterally 



notched anterior to the median groove. 



j_ 1,— Venter pale brown, sternum not darker 



than the coxse avdvci. 



f 2 —Venter black or blackish, sternum darker 



than coxa;, jrondicola. 



e 2 —Median band of cephalothorax notched later- 

 ally anterior to the median groove. 

 / 1 —Legs (at least the femora) distinctly an- 

 nulated, venter and sternum not deep 



g 1 —Spines on the femora shorter than 

 the greatest diameter of the fem- 



Qj.^ pratensis. 



> g 2.— Spines on the femora longer than the 



greatest diameter of the femora, 



purcelli. 



2 —Legs not annulated, venter and sternum 



deep black, .... sepulchralis. 



Trocliosa noctuabunda n. sp. PI. XVIII, figs. 9, 10. 



(Several specimens from Austin, Texas.) 



Eyes —First row nearer the second than to the clypeal margin, 

 straio-ht fully as broad as the second, the middle eyes nearly double 

 the size of the lateral. Eyes of second row largest, separated by about 

 1 3 times their diameter. Third row little broader than the second, 

 and almost twice the diameter of one of its eyes behind the second. 

 Dorsal eve area less than one-sixth the length of the cephalothorax. 

 Quadrilateral of the posterior eyes about as long as broad. 



2^0^^.— Cephalothorax in front in the (^ rather pointed and about 



