272 ARANEIDEA. 
The caput has a few black prominent bristles in the ocular region and on the clypeus, the height of which 
is much less than half that of the facial space. 
Eyes very unequal in size, the fore-laterals much the largest, the fore-centrals smallest; they form very nearly 
a semicircle ; the curve of the anterior row is much the strongest; the convexity of the curves of both 
rows is directed forwards. The four centrals form a quadrangle whose length is much greater than its 
breadth, and its anterior shorter than its posterior side. The eyes of the hinder row are about equally 
separated. 
Legs moderately long, very unequal in length, 1, 2, 4, 3, or 2,1, 4, 3, but little difference between 1-2 and 
3-4. Those of the first and second pairs robust, armed with spines, of which there are four pairs of 
strong ones in a longitudinal series beneath the tibie and two pairs beneath the metatarsi, and one or 
two lateral spines. The colour of the legs is dull yellow tinged with orange, and faintly and irregularly 
annulated with brownish; the third and fourth pairs are yellow, and the spines few and weak; a 
compact claw-tuft beneath the tarsal claws. 
Falces strong, rather long, straight, somewhat tapering, of a dull orange-yellow-brown colour, with an irregular 
dark brown patch at the base and a few strong bristles towards their inner sides. 
Mawille strong, moderately long, straight, rounded at their extremity on the inner side, of a yellow-brown 
hue. 
Labium similar in colour to the maxille or rather darker, rather more than half their length, and of a some- 
what tapering form, truncated at the apex. 
Sternum longer than broad, the posterior extremity drawn out into a point between the coxe of the fourth pair 
of legs, which are in rather close proximity to each other. The colour is yellowish, with a broadish 
margin and central patch of dusky brown. 
Abdomen oval ; upperside yellowish-white, almost entirely occupied by a broad, central, longitudinal, strongly 
dentated, yellow-brown band, broadest at the middle, and along cach lateral margin are four shining, 
transparent, dull, amber-coloured, circular, convex spots or pustules of different sizes, forming a slightly 
curved longitudinal line on each side; sides dull brownish-yellow, with several obscure oblique whitish 
lines; underside brownish-yellow along the middle, margined laterally by a whitish suffused line. The 
form of the genital aperture was plainly visible, though not yet perfectly developed. The abdomen is 
thinly clothed with hairs and a few dark prominent bristles. 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith). 
TROCHOSA, C. L. Koch. 
Trochosa insignis, sp. n. 
Adult male, length 73 lines; length of cephalothorax 4 lines, breadth of ditto 3 lines. 
Cephalothorax oval, truncated in front; lateral marginal impressions at the caput moderate, profile level. 
Colour dark yellow-brown, deepening to black-brown on the ocular area, with darker converging lines and 
three well-defined longitudinal orange-yellow-brown bands; the central band is the narrowest, and 
begins almost as a mere line clothed with white hairs, close behind the anterior row of eyes, widening 
behind the posterior row; the two lateral bands run through the caput as well as the thorax, leaving a 
narrower dark yellow-brown submarginal band and a marginal line clothed with white hairs. 
Eyes in the ordinary position ; the quadrangle formed by the four large posterior eyes is slightly broader than 
long, and its anterior side distinctly shorter than the posterior side; the anterior eyes of the quadrangle 
are larger than the posterior eyes; the anterior row of four eyes for ms a very nearly straight transverse 
line (if curved, the convexity directed backwards), a little shorter than the second row, and its eyes 
are about equally separated by less than a central eye’s diameter ; the two central eyes are largest. The 
centre of the clypeus (which is very narrow) is orange-yellow-brown, clothed with white hairs, as also is 
the fore extremity of the orange-yellow-brown lateral band on each side. The fore part of the caput 
is furnished with some long, strong, black bristles. 
Falces powerful, dark orange-brown, thickly furnished with black hairs and bristles. 
Palpi moderate in length and strength ; colour yellow-brown ; cubital and radial joints short but of equal 
length ; the humeral joint has four short black spines in a transverse row near the fore extremity of the 
