144 Mr. R. I. Pocock on 



but as thick as the femur, its supero-internal edge armed with 

 three minute spinules ; the tibia cylindrical, as long as the 

 patella, but more slender ; the tarsus likewise cylindrical, a 

 little shorter and distinctly more slender than the tibia ; the 

 metatarsus shorter and much slenderer than the tarsus, com- 

 posed of four slender cylindrical segments, which increase in 

 length from before backwards and are very distinctly defined 

 from each other ; the proximal segment also very clearly 

 marked off from the distal end of the tarsus. Preanal legs 

 long and strong, reaching when extended to the middle of the 

 tibial segment of the anal ]mir, not armed with spinules ; rest 

 of the legs weaker, haiiy, the distal end of the tibia, at all 

 events in the middle and posterior end of the body, bearing a 

 superior spinule ; the inferior surface of the femur, patella, 

 and tibia also armed with a distal spinule in most of the legs. 



Stermtes punctured and marked with a median sulcus. 



Length 16 millim. 



Bab. Chimborazo (east side, 12,000 feet). 



From the form of its anal legs it is clear that this species 

 is allied to both N. longitarsis (Newp.) and jV. azteca^ 

 Saussure. From the latter it may be recognized by the 

 form of the furrow on the first tergite and by tlie spine-arma- 

 ture of the anal legs ; from the former, which is only known 

 to me from Newport's figure and description, by the great 

 difference in size that exists between the tarsal segment of 

 the anal legs and the metatarsal j in longitarsis these segments 

 are only slightly unequal. 



Newportia monttcola, sp. n. 



This species in most of its features so closely resembles 

 the preceding that a reference to the points of difterence 

 between the two will be the most intelligible way of describ- 

 ing it. 



The anterior border of the maxillary sternitc is not trans- 

 verse and straight, but is strongly and convexly produced 

 forwards in the middle line. The first tergite is marked 

 before its anterior border with a strong furrow ; but instead 

 of being semicircular, the furrow is composed of a right and 

 left portion, each of which runs obliquely backwards and 

 inwards to the middle of the tergite, meeting its fellow of the 

 opposite side in an angle of about 100°. The longitudinal 

 sulci of this tergite converge in front and each anteriorly 

 bil'iricatcs : the outer branch running obliquely outwards and 

 forwards moots the anterior furrow ; the inner, shorter branch 

 runs obliquoly forwanls and inwards and meets its fellow of 



