76 
THOMISIDiE. 
breadtli of the abdomen, ^th ; length of an anterior leg, 2 7 5 ths; length of a leg of the third 
pair, fgths. 
The abdomen is oviform, sparingly supplied with hairs, convex above, projecting over 
the base of the cephalo-thorax ; the upper part is of a bright-red colour, somewhat paler in the 
medial region, and has a few obscure, transverse lines of a lighter hue above the spinners ; 
the sides have a yellowish-white tint, and the under part is of a pale-red colour, mottled with 
yellowish-white spots; the sexual organs have a brownish-black hue. The cephalo-thorax 
is large, slightly compressed before, broadly truncated in front, convex, and glossy; the 
falces are short, cuneiform, and vertical; the lip is rather long and triangular; and the 
sternum is heart-shaped ; the first and second pairs of legs, which are much longer and more 
powerful than the third and fourth pairs, are nearly equal in length, the first pair being 
rather the longer, and are provided with two parallel rows of strong spines on the under side 
of the tibiae and metatarsi; the legs of the third pair are the shortest ; the palpi are short, 
and have a curved, pectinated claw at their extremity. These parts, which are of a pale- 
green colour in immature females, have a greenish-yellow hue in adults. The tarsi are 
terminated by two curved, deeply pectinated claws. The eyes form a crescent on the anterior 
part of the cephalo-thorax; the lateral eyes, which are seated on tubercles, are larger than 
the rest, those of the anterior row being the largest of the eight. 
The male, though rather smaller and slenderer than the female, resembles her in colour, 
with the exception of the cephalo-thorax and its appendages, which have a red hue. The 
radial joint of its palpi is rather stronger than the cubital, and projects a large, pointed 
apophysis from its extremity, on the outer side ; the digital joint is oval, compact and 
pointed at its termination, convex and hairy externally, concave within, comprising the palpal 
organs, which are moderately developed, not very complicated in structure, and of a red 
colour. 
An adult male and female of this handsome species, captured at Southgate in 1848, the 
former in May, and the latter in June, are in Mr. Walker’s cabinet. 
Thomisus floricolens. PI. IV, fig. 44. 
Thomisus floricolens, Walck., Hist. Nat. des Insect. Apt., tom. i, p. 532. 
— — Blackw., Annals and Mag. of Nat. Hist., second series, vol. xiv, 
p. 29. 
— dorsatus, Hahn, Die Arachn., Band i, p. 44, tab. 11, fig. 34. 
— —- Koch, Uebers. des Arachn. Syst., erstes Heft, p. 24. 
— — Koch, Die Arachn., Band xii, p. 56, tab. 410, figs. 991 and 992. 
— — Sund., Vet. Acad. Handl., 1832, p. 221. 
Length of the female, jth of an inch ; length of the cephalo-thorax, 7 ’ 5 th, breadth, ^th ; 
breadth of the abdomen, jth ; length of an anterior leg, §ths; length of a leg of the third pair, ,'th. 
The cephalo-thorax is convex, glossy, compressed before, rounded on the sides, truncate 
