Attklie of North America. 67 



Cephalothorax high, convex, a httle dilated behind dorsal eyes, with sides 

 siightly concave in front and a little rounded (nearly vertical) be- 

 hind; cephalic part inclined; thoracic falling abruptly from a little 

 way behind dorsal eyes. Ocular area occupying more than two- 

 fifths of cephalothorax, one-third wider than long, equally wide in 

 front and behind. Anterior eyes rather small, in a very slightly 

 curved row; middle eyes sub-touching, scarcely twice as large as the 

 lateral, which are scarcely separated from them; eyes of second row 

 a little nearer dorsal than lateral eyes; dorsal a Mttle smaller than 

 lateral eyes, further from each other than from lateral borders, form- 

 ing a row as wide as cephalothorax at that place. Clypeus retreat- 

 ing, one-half as high as middle eyes. Falces but little wider than 

 the two middle, eyes, square, not long, parallel, a little inclined back- 

 ward; fang extremely small. IMaxillse parallel, very small, wider 

 and rounded at extremity. Labium small, a Uttle more than one- 

 third as long as maxUlae, as wide as long, rounded. Sternum nearly 

 round. Anterior coxse separated by more than width of labium at 

 base. Legs of the first jjair much the stoutest, with tibia nearly as wide 

 as long, much enlarged in all directions, with fringes of stout hau's; 

 patella and tibia also enlarged with some stout hairs; long and slen- 

 der femoral, tibial and metatarsal spines on the four pairs, and patel- 

 lary spines on the third and fourth; metatarsi of the fourth spined 

 throughout their length. 



Coloration: Cephalothorax dark colored, nearly covered with bright irid- 

 escent red hairs, with wliich, on the cephalic part, some long black 

 hairs are intermixed; lower border with a black line between two 

 white Unes; anterior eyes surrounded by white rings. Abdomen, ven- 

 ter, clypeus, falces, palpus and legs all covered with iridescent red 

 hair. ]\Iouthparts, stermun and cox£e very dark brown, with some 

 short, white hairs. 



Habitat: Oregon. 



SAITIS PULEX Hentz. 



Plate I, figures 50, 50a. Plate V, figures 50, 50a. 



Syn.: 1845. AxxuspuZej? H., Journal Bost. Soc. Nat. Hist., Vol. V. 

 1846.? EuOPHRYS offuscata C. K., Die Arachu., XIII, p. 218. 

 1875. AXTUSpitZe.xJid., Coll. Arachn. Writ, by N. M. Hentz. Ed. by 



Burgess, Boston, G5. 

 1885. Cyrba pulex Keyserling, Neue Spinnen aus Amerika, VI, 



Verhandlungen zoologiscli-botanischen Gesellschaft, 



p. 23 (509). 



