1902.] NATURAL SCIENCES OF PHILADELPHIA. 575 



hairs. Abdomen dull orange -yellow above, with a brownish mark 

 at each antero-lateral margin prolonged backward as an indistinct 

 stripe, transverse lines of brown across the posterior half of the 

 dorsum, and two longitudinal lines of brown on the anterior half 

 meeting at a point in the middle; the sides streaked with dull 

 orange and buff; venter paler yellow with small dark spots most 

 distinct and numerous laterally and posteriorly. - Epigynum reddish- 

 brown, spinnerets pale yellow. Chelicera reddish-brown, maxilke 

 and labium yellow like the sternum. Legs clear reddish-brown, 

 with indistinct buff annulations on the femora and tibia. Palpi 

 colored like the legs. 



Comparisons. — This form resembles a Lijcosa in relative stoutness 

 of the legs, in the comparative shortness of their spines, and in 

 the amount of hair upon them, and in compai'ative stoutness of 

 the chelicera ; the middle eyes of the first row are also decidedly 

 larger than the lateral. Apparently, however, it should be con- 

 sidered a Pardosa on account of the length of the legs, the greater 

 length of the superior spinnerets, and the comparatively long 

 extent of the dorsal eye area. 



Genus PIRATA Sund. 



The following key will help to distinguish the species here 

 described : 



A. — Cephalothorax not more than 1.8 mm. long, . . humicolus. 

 B. — Cephalothorax 2.2-2.8 mm. in length. 



I. — Femora usually annulated, submarginal light stripe of 

 cephalothorax very distinct, venter usually with longi- 

 tudinal rows of dark spots liber. 



II. — Femora not banded, submarginal light stripe of cephalo- 

 thorax indistinct, venter without rows of dark spots. 

 1. — A large dark mark on the sides near the spinnerets, 



nigromacnlatus. 

 2. — No large dark mark on the sides near the spinnerets, 



elegans. 

 C. — Cephalothorax more than 3 mm. long. 



I. — Eyes of second row separated from the third row by about 



their diameter, marxi. 



TI. — Eyes of second row separated from the third row by twice 

 their diameter, vrocursus. 



25. Pirata humicolus n. sp. (Pi. XXX, figs. 40, 41.) 



(Types of d* and $, and otiier specimens, author's collection, 

 Woodland Cemetery, Philadelphia. ) 



