PHILODROMUS. 
97 
seated on small but distinct tubercles. The abdomen is oviform, sparingly clothed with hairs, 
convex above, projecting over the base of the cephalo-thorax; its colour is red-brown, freckled 
with minute spots of a darker hue, the sides being the palest; on the upper part, a series of 
oblique, not very distinct, yellowish-white spots occurs on each side of the medial line ; these 
series are slightly curved, and, as their extremities meet, they describe an oblong, lanceolate 
figure. 
A male of Pldlodromus Clarkii , having the palpal organs completely developed, was taken 
at Southgate in June, 1849, and is preserved in Mr. Walker’s cabinet. 
PHILODROMUS VARIATUS. : : ; 
Pldlodromus variatus, Blackw., Lond. and Edinb. Phil. Mag., third series, vol. x, 
p. 102. 
— —• Blackw., Annals and Mag. of Nat. Hist., second series, vol. viii, 
p. 37. 
* 
Length of the female, 1th of an inch; length of the cephalo-thorax, th, breadth, ,-,-th ; 
breadth of the abdomen, gth ; length of a leg of the second pair, J,ths ; length of a leg of the 
fourth pair, J,ths. 
The abdomen is oviform, hairy, convex above, and projects a little over the base of the 
cephalo-thorax; the upper part is of a yellowish-brown hue, mingled with red-brown and 
very dark-brown; a band of the last colour extends from its anterior extremity, along the 
middle, nearly half of its length; this band is comprised between two parallel bands of a pale, 
yellow-brown hue, and on each side of it there are two dark-brown, circular depressions, the 
four describing a small quadrangular figure; about the middle, several oblique, very dark- 
brown patches occur, behind which there is a curved, transverse line of the same hue; a 
black streak passes upwards from each superior spinner, and the space between them is of a 
glossy, yellow-brown colour; the sides have a red-brown hue, blended with brownish-black; 
the under part is of a yellowish-white colour, faintly tinged with dull-green, the middle being 
occupied by a broad, longitudinal, dark-brown band; and the colour of the branchial opercula 
is dull-yellow. The cephalo-thorax is short, broad, convex, hairy, slightly compressed before, 
and rounded on the sides, which are of a dark-brown colour, mingled with yellow-brown, a 
broad band of the latter hue extending along the middle. The falces are conical, vertical, 
armed with one or two small teeth on the inner surface, and of a reddish-brown colour. The 
maxillae are gibbous at the base, and have a yellowish-brown tint. The lip is triangular and 
of a dark-brown hue, being palest at the apex, which is obtuse. The sternum is heart-shaped, 
of a yellowish-brown colour, with reddish-brown lateral margins, and is thinly covered with 
whitish hairs. The legs are long, provided with hairs and sessile spines, and of a pale, 
reddish-brown hue, which is deepest at the joints; the second pair is the longest, then the 
first, and the third pair is rather longer than the fourth; each tarsus is terminated by two 
curved, pectinated claws, and below them there is a small scopula. The palpi resemble the 
13 
