chamberlin: the arachnida. 



277 



median eye and a pair of broader stripes between this and the one of 

 opposite side. Sternum yellow, a pair of large dark spots on the mid- 

 dle portion and a dusky line within each lateral border. Labium 

 dusky, pale across tip. Endites yellow. Chelicerae yellowish, some- 

 what darker proximally. Legs yellowish brown or testaceous, the 

 femora and coxae beneath clear yellow or whitish yellow, the femora 

 darker distad; over the anterodorsal surface the femora are marked 

 with a series of four large dark spots. Abdomen with venter dusky 

 yellowish; sides and dorsum greyish black, a lanceolate outline at 

 base above in black and a series of about four white spots on each side. 



Face and clypeus much sloping as usual. 



Anterior row of eyes slightly recurved ; shorter than the row formed 

 by the two posterior median eyes (28:31); median eyes much larger 

 than the laterals, the diameter being nearly twice as great (15:8); 

 median eyes not fully their radius apart (five sevenths) and scarcely 

 more than half as far from the laterals; medians about once and a 

 third their diameter from lower margin of clypeus. Posterior median 

 eyes with diameter one and a third times that of the anterior medians, 

 their diameter apart and less than their radius from the anterior 

 medians. Area of posterior eyes wider behind than in front in ratio 

 115: 62, nearly 2.4 times wider than long. 



Lower margin of furrow of chelicera with three stout conical teeth. 



Labium longer than wide in ratio 7:6; basal notch one fourth the 

 total length; distal margin widely but very weakly convex, sub trun- 

 cate; sides convex and moderately converging distad. 



Total length of sternum including caudal process exceeding the width 

 nearly as 10:9. 



Tarsi of legs all slender and distinctly curved or bent, their diameter 

 least near middle of length. Paired claws of leg I with five slender and 

 moderately divergent teeth on the proximal half; unpaired claw small, 

 abruptly bent, with one slender spine or tooth, (Plate 23, fig. 1). 



Female. Length, 9 mm. Length of cephalothorax, 4.3 mm.; 

 width, 4.7 mm. 



Locality — Santa Ana, 3,000 feet, August. (Type, M. C. Z. 267, 

 one female, not quite adult). 



