TROCHOSA.—ECHEMUS. 273 
upperside, the two middle spines nearer together than to the lateral ones, and a single stronger black 
spine a little way behind them. The radial joint also has several short spines in front; digital joint 
nearly as long as the radial and cubital joints together ; basal half short-oval, whence the rest is somewhat 
pinched in and finger-like ; palpal organs beneath the basal half and of characteristic structure. 
Legs long, strong, furnished with spines and a dense scopula beneath the whole length of the tarsi and meta- 
tarsi of the first and second pairs and beneath the tarsi and a portion of the metatarsi of the third and 
fourth pairs; and beneath the two terminal claws is a small claw-tuft. The tarsi of the first pair are 
slightly curved. The colour of the first pair is deep brown, the femora darkest, the tarsi yellow-brown. 
The other legs are yellow-brown tinged with orange; the femora dark brown underneath, with two 
longitudinal parallel dark brown lines on the upperside, those on the femora of the first pair not so 
distinct, owing to their darker ground-colour, but still traceable. The femora are clothed with, among 
others, numerous white hairs of a pubescent kind. 
Mawille and labium yellow-brown. 
Sternum rather small, oval, brown, with yellow-brown margins, and a longitudinal pale yellow-brown central 
line on its fore half, the whole furnished with long, coarse, bristly, black and other hairs. 
Abdomen rather narrow-oval; on the middle of the fore half of the upperside is a broad, deep brown, well- 
defined, central longitudinal band, widening gradually backwards; two small, deep brown, projecting 
points (one on each side) at the end; thence to the spinners is a longitudinal series of five, slightly 
diminishing, short but strong, clearly defined, nearly black, angular bars or chevrons, the apex of each 
running into the angle of the one in front of it; the central band and chevrons are bordered from end to end 
with a distinct pale stripe clothed with yellowish and grey hairs; the sides of the abdomen are deep brown, 
melting into the paler yellow-brown of the underside, which is marked with three longitudinal blackish 
lines, the central one ending in front of the genital aperture, with a somewhat triangular or spade- 
shaped dark brown patch. Spinners short, compact, the inferior pair strongest. 
Hab. Costa Rica, San José (J. F. Tristan & P. Biolley, ex Sarg). 
ECHEMUS, Simon. 
Echemus pedestris, sp. n. 
Adult female, length 2 lines. 
Cephalothorax much longer than broad, not greatly convex above, oval, truncate in front; the lateral marginal 
impressions at the caput are slight; colour yellow-brown, marked with somewhat scratchy brown 
markings, chiefly following the direction of the normal indentations. The height of the clypeus is equal 
to the diameter of the fore-central eyes. 
Eyes rather large and closely grouped, in two transverse rows of nearly equal length, both slightly curved and 
the convexity directed backwards, the posterior row rather the longest ; all are pearly-white, except the — 
fore-centrals, which are grey. The hind-centrals are of an oblong-oval form, placed obliquely and 
touching at their hinder extremities; the hind-laterals are near but do not touch the hind-centrals; 
the fore-centrals, which are smallest, nearly touch the fore-laterals, and are separated from each other by 
nearly half a diameter. The central quadrangle is longer than broad, and those of each lateral pair are 
separated by about half the diameter of one of the hind-laterals. 
Legs tolerably long and strong, especially the femora, subequal, 4, 1, 2, 3,—1 and 2 almost equal; clothed 
with coarse hairs and spines, the latter not numerous nor very strong, there being none beneath the tibize 
and metatarsi of the first and second pairs; colour dull yellowish, the genue and tibiz of the first and 
second pairs strongly suffused with blackish. Neither scopula nor claw-tuft. 
Falces moderately strong, prominent in front, similar in colour to the cephalothorax. 
Mazille strong, inclined towards the labium, broadly and obliquely impressed across the middle ; palpi springing 
from halfway between their base and extremity. 
Labium rather higher than wide at the base, narrower at the apex, which is rounded, and rather more than 
half the length of the maxille. 
Sternum oval, pointed behind, rather curvi-truncate in front. The maxille, labium, and sternum are similar 
in colour to the legs. 
BIOL. CENTR.-AMER., Arachn. Aran., August 1898. 2NP 
