230 bulletin: museum of comparative zoology. 



caudad down posterior declivity of cephalothorax ; lateral borders also 

 black, the lateral bands confluent with the median one in front; cly- 

 peal margin pale. Sternum testaceous, broadly bordered with black. 

 Labium and endites blackish. Chelicerae testaceous in front, darker, 

 chestnut, distally. Legs black, conspicuously annulate with yellow or 

 testaceous; femora with a broad light band proximally and a narrower 

 one toward distal end; patellae with one subdistal annulus; tibiae 

 with an annulus at proximal end and one between middle and distal 

 end; metatarsi with annuli corresponding to those of tibiae; tarsi en- 

 tirely light or light at the ends. Abdomen black; on dorsum toward 

 caudal end in median line a row of three small light dots and in front of 

 these two pairs of separated oblique light marks of which the anterior 

 send a slender branch forward. Hairs of abdomen short, numerous. 



Posterior row of eyes a little procurved ; median eyes only slightly 

 elongate and oblique, about seven tenths their longer diameter apart 

 and nearly the same distance from the laterals; laterals equal in size 

 to the medians, larger than the anterior laterals with which they are 

 contiguous. Anterior row of eyes in dorsal view strongly recurved, 

 the median eyes being carried considerably forward as usual, larger 

 than the laterals (diameters as 11:7), a little more than their radius 

 apart (six elevenths of diameter), only half as far from the laterals; 

 in front view the row is straight or nearly so. Area of median eyes 

 subquadrate, being very slightly wider in front than behind. Cheli- 

 cerae much longer than the height of the clypeus, (Plate 15, fig. 8). 



Labium wider than long in ratio 22:13; distally widely truncate. 



Sternum subtriangular; longer than wide in ratio 6:5.5; caudal 

 process obtusely rounded, (Plate 15, fig. 7). 



Paired claw of leg I with seven or eight teeth of which the proximal 

 ones are very short, (Plate 15, fig. 9). 



Abdomen subglobose, smoothly rounded, with no irregularities or 

 tubercles. 



Female. Length, 5.1 mm. Length of cephalothorax, 2.2 mm.; 

 width, 1.85 mm. 



Locality. — ■ Conservidayo River, August. (Type, M. C. Z. 181,. 

 one female). 



Named for Mr. A. B. Leguia, former President of Peru. 



