YELEDA. 
151 
region of the sides, extending towards the spinners, and the under part, are of a brownish- 
black colour. The cephalo-thorax is long, moderately convex, compressed before, depressed 
and rounded on the sides, and clothed with white hairs; it is of a brown-black colour, with 
three longitudinal, brownish-yellow lines, one in the middle, and another on each side, and 
narrow lateral margins of the same hue. The falces are short, conical, vertical, and of a 
yellowish-brown colour. The maxillae and lip have a dark-brown hue, the apex of the latter 
being much the palest. The sternum is of an oblong-oval form; it is thinly clothed with 
white hairs, and has a brownish-black hue. The legs are hairy, and the inferior surface of 
the tarsus and of the extremity of the metatarsus of the posterior pair is provided with short 
spines; they are of a yellowish-brown colour, with dark-brown streaks and annuli. The 
palpi are short, and resemble the legs in colour, that of the digital joint being dark-brown. 
Four specimens of this remarkable spider, taken by the Rev. O. P. Cambridge, among 
heath, at Lyndhurst, in the New Forest, in September, 1858, were all immature; indepen¬ 
dently, however, of this circumstance, the species presents such marked differences in external 
structure from the spiders belonging to the several genera included in the family 
Cinijlonidce , that the expediency of founding a new genus upon it cannot admit of a doubt. 
Possessing many characteristics in common with the spiders of the genus Uloborus, it might 
have been placed among them had it not been provided with a fourth pair cf spinners and 
calamistra, which must exercise an important influence upon its economy. 
M. Walckenaer states, on the authority of M. Dufour (‘ Hist. Nat. des Insect. Apt.,’ 
tom. ii, p. 229), that the snare of JJloborus WalcJcenaerius is constructed on the same plan as 
those of the Epeiridce, from which circumstance it may be inferred that it has not the 
additional pair of spinners and calamistra, as the snares of all spiders provided wi,th this 
apparatus, whose economy is known, exhibit unmistakeable evidence of its having been 
employed in their fabrication. 
