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 pair, not armed with spinules ; rest 
of the legs weaker, hairy, 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. 
Sternites punctured and marked with a median sulcus. 
Length 16 millim. 
Hab. 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 N. azteca , 
Saussure. From the latter it may be recognized by the 
form of .the furrow on the first tergite and by the 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 ; in longitarsis these segments 
are only slightly unequal. 
Newportia monticola , sp. n. 
This species in most of its features so closely resembles 
the preceding that a reference to the points of difference 
between the two will be the most intelligible way of describ- 
ing it. 
The anterior border of the maxillary sternite 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 
bifurcates : the outer branch running obliquely outwards and 
forwards meets the anterior furrow ; the inner, shorter branch 
runs obliquely forwards and inwards and meets its fellow of 
