208 
THERIDIIDiE. 
Pholcus phalangioides. PI. XV, fig. 137. 
Pholcus phalangioides, Walck., Hist. Nat. des Insect. Apt., tom. i, p. 652. 
_ _ Latr., Gen. Crust, et Insect., tom. i, p. 99. 
_ _ Hahn, Die Arachn., Band ii, p. 34, tab. 50, fig. 119. 
_ _ Koch, Uebers. des Arachn. Syst., erstes Heft, p. 20. 
_ — Blackw., Linn. Trans., vol. xix, p. 125. 
_ _ Elackw., Annals and Mag. of Nat. History, second series, 
vol. viii, p. 447. 
— opilionoides , Koch, Die Arachn., Band iv, p. 95, tab. 135, fig. 811. 
Length of the female, §rd of an inch; length of the cephalo-thorax, -rath, breadth, ,\th ; 
breadth of the abdomen, Jth; length of an anterior leg, 2#h; length of a leg of the third 
pair, l T Vth. 
The cephalo-thorax is circular, slightly convex, glossy, with some long hairs in the 
medial line, but without the customary indentation; the anterior part, on which the eyes are 
situated, is prominent, and the space between those organs and the falces is broad and 
vertical; it is of a pale yellowisli-brown colour, a brown band, the posterior part of which is 
the broadest, extending along the middle. The eyes are seated on black spots, the two 
placed transversely between those constituting the lateral triangles being much the smal est 
of the eight. The falces are small, vertical, united at the base, somewhat cuneiform, and 
armed with a short, slightly curved fang, and a single, strong tooth on the inner side, at the 
extremity; the maxillae are enlarged at the base, where the palpi are inserted, and inclined 
towards the lip, which is short, broad, contracted at the base, dilated in the middle, and 
rounded at the apex; the sternum is heart-shaped. These parts are of a yellowish-brown 
colour, the falces and maxillae being darkest at their extremities. The legs are very long and 
slender, and are provided with short, fine hairs; they have a pale-brown hue, the colour of 
the extremities of the femora and tibiae being light yellowish-brown, and that of the genual 
joint dark-brown; the first pair is the longest, then the second, which a little surpasses the 
fourth pair, and the third pair is the shortest; each tarsus is terminated by three claws; the 
two superior ones are curved and deeply pectinated, and the inferior one is inflected near its 
base. The palpi are short, and have a yellowish-brown tint. The abdomen is somewhat 
cylindrical, being rather larger at the posterior than at the anterior extremity; it is soft, 
thinly clothed with hairs, and of a pale yellowish-brown colour, with an irregular band of a 
darker hue extending along the middle of the upper part, and some obscure, dark spots on 
the sides; the spinners are of a yellowish-brown colour marked with dark-brown, and are 
situated under the extremity of the abdomen; the sexual organs have a red-brown tint; they 
are prominent, and have a small, cylindrical process in connexion with them, which is directed 
The male greatly resembles the female, but its abdomen is slenderer, and the dark, 
longitudinal band on the upper part is less perfectly defined. Its falces have a small, dark, 
conical process near their extremity, in front, at the base of which, on the inner si e, tieie 
