296 
LlNYPHIIDiE. 
breadth of the abdomen, #h; length of an anterior leg, Jth; length of a leg of the third 
pair, ^th. 
The eyes of the lateral pairs are the largest, and the two anterior ones of the four forming 
the tiapezoid are much the smallest of the eight. The cephalo-thorax is oval, convex, glossy, 
prominent before, with numerous strongly marked punctures on the margins, from which rows 
of punctures converge towards an indentation in the medial line; the falces are moderately 
strong, conical, armed with a few teeth on the inner surface, and inclined towards the sternum, 
which is broad, heart-shaped, and thickly marked with punctures; the maxillae incline towards 
the lip, which is semicircular and prominent at the apex. These parts are of a very dark- 
brown colour, the falces and maxillae having a tinge of red. The legs and palpi are slender, 
provided with hairs, and of a red colour. Each tarsus is terminated by three claws; the two 
superior ones are curved and pectinated, and the inferior one is inflected near its base. The 
abdomen is oviform, convex above, projecting over the base of the cephalo-thorax; it is 
sparingly clothed with hairs, glossy, and has a black hue ; the sexual organs are rather pro¬ 
minent, and of a reddish-brown colour; that of the branchial opercula being dull-yellow. 
The male is smaller than the female, but it resembles her in colour. Each falx has two 
contiguous, acute, toothlike processes near its extremity, towards the inner side. The radial 
joint of the palpi is stronger than the cubital joint, and projects two pointed apophyses from 
its extremity, in front, the superior one being much the more prominent; the digital joint has 
a short oval form; it is convex and hairy externally, concave within, comprising the palpal 
organs, which are moderately developed, not very complex in structure, rather prominent, and 
of a red-brown colour. The anterior part of the cephalo-thorax is prominent, with an oblong 
indentation directed backwards from each lateral pair of eyes. 
M. Walckenaer, in disposing of WalcTcenaera punctata as a synonym of Argus trapezoides, 
refers to his ‘Hist. Nat. des Insect. Apt.’ tom. ii, p. 353, for an account of the latter; but 
as no species bearing that name appears to be included in the volume, it must suffice to direct 
attention to the error. 
Females of this spider were taken in May, 1838, under stones in a moist pasture near 
Llanrwst; and, in the summer of 1854, Mr. R. H. Meade captured ail individual of the same 
sex at Hornsea, near the east coast of Yorkshire. An adult male has since been found under 
a stone in a wood near Hendre House. 
Walckenaer a parallela. PL XX, fig. 211. 
Theridion parallelum, Wider, Museum Senckenb., Band i, p. 234, taf. 16, fig. 1. 
Argus parallelus, Walck., Hist. Nat. des Insect. Apt., tom. ii, p. 366. 
Length of the female, : ',th of an inch; length of the cephalo-thorax, ~th, breadth, 5 ' B th ; 
breadth of the abdomen, ~th; length of a posterior leg, T ' ? th; length of a leg of the third 
pair, ^th. 
