THOMISUS. 
67 
Thomisus brevipes. PI. IV, fig. 37. 
Thomisus brevipes, Hahn, Die Arachn., Band i, p. 30, tab. 8, fig. 25. 
— — Walck., Hist. Nat. des Insect. Apt., tom. i, p. 503. 
— — Blackw., Linn. Trans., vol. xix, p. 122. 
Blackw., Annals and Mag. of Nat. Hist., second series, vol. vii, 
p. 448. 
Xysticus — Koch, Uebers. des Aracbn. Syst., erstes Heft, p. 25. 
Length of the female, jth of an inch ; length of the cephalo-thorax, ^th, breadth, ^th; 
breadth of the abdomen, Jth ; length of a leg of the second pair, £ths; length of a leg of 
the third pair, jth. 
The cephalo-thorax is compressed before, rounded on the sides, truncated in front, 
abruptly sloped behind, and thinly covered with short, strong hairs; a large, yellowish-brown 
band, minutely spotted with reddish-brown, which increases in breadth as it approaches the 
eyes, occupies the medial line; the sides are of a brownish-black colour, mottled with 
yellowish-brown, and a fine line of the latter hue occurs on the lateral margins. The falces 
are short, strong, cuneiform, and slightly inclined towards the sternum, which is heart-shaped. 
These parts are of a yellowish-brown colour, mottled with brownish-black. The maxillae and 
lip have a brown hue, their bases being the darkest; the former are convex at the base, 
and the figure of the latter is oval. The legs are short, and of a yellowish-brown colour, 
mottled with brownish-black; the first and second pairs are longer and more robust than the 
third and fourth pairs, the second pair being the longest, and the third pair the shortest; 
they are provided with strong hairs and sessile spines; two longitudinal rows of the latter 
occur on the under side of the tibiae and metatarsi of the first and second pairs, and the tarsi 
are terminated by two curved, pectinated claws. The palpi resemble the legs in colour, and 
have a curved claw at their extremity. The eyes describe a crescent on the anterior part of 
the cephalo-thorax; those of each lateral pair are larger than the intermediate ones; the 
anterior one is the larger of the two, and the posterior one is seated on a small tubercle. The 
abdomen is large, depressed, corrugated, particularly on the sides, thinly covered with short, 
strong hairs, much broader at the posterior than at the anterior extremity, and projects over 
the base of the cephalo-thorax; it is of a yellowish-brown colour, minutely spotted with red- 
brown, and has some transverse streaks of a brownish-black hue in the posterior region of the 
upper part, whose continuity is frequently interrupted in the middle ; the sides are irregularly 
streaked and spotted with brownish-black, and on the under part there are three imperfectly 
defined, longitudinal bands of a dark, reddish-brown tint; the sexual organs and the branchial 
opercula have a red-brown hue. 
Adult females of this species are occasionally met with under stones in fields adjacent to 
woods at Oakland, near Llanrwst. The male has not yet been discovered with the palpal 
organs in a state of development; it closely resembles the female in colour when the digital 
