1870. | REV, 0. P. CAMBRIDGE ON NEW ARANEIDKEA. 733 
peculiar and almost unique powerful claws or talons at the extremity 
of the digital joints of the palpi. 
Fam. THERIDIDES. 
Nov. gen. SpHECOZONE (097, a wasp, Cwvn, waist ). 
Characters of the Genus.—Cephalothorax separated from the ab- 
domen, to which it is joined by a distinct stem or pedicle; caput 
rather elevate; clypeus impressed below the eyes. 
Legs long and slender ; relative length 4, 1, 2, 3,—4 and 1 being 
nearly equal; each tarsus ends with three claws, the palpus in the 
female being without any terminal claw. 
Eyes not very unequal in size, situated in two transverse curved 
rows (or four pairs) on upper fore margin of caput ; those of each 
lateral pair are contiguous to each other and seated on a slight tu- 
bercle; those of the two central pairs form an oblong figure, whose 
fore side is much the shortest. 
Mazille moderately long, nearly straight, but considerably in- 
clined towards the labium, dilated at their bases, and somewhat 
pointed at extremities on inner side. 
Labium short, small, and apparently nearly semicircular in form. 
SPHECOZONE RUBESCENS, n. sp. (Plate XLIV. fig. 3.) 
Male adult, length 14 line; female adult, 2 lines. 
The cephalothoraz, falces, maxille, labium, sternum, and part of 
the femora of the legs are of a bright red-brown, tinged with orange ; 
the rest of the legs, the palpi, and (in the female) the caput, falces, 
maxillz, and labium are strongly suffused with black. The abdo- 
men is of a bright pinkish or cinnamon-red, the colour of the 
petiole by which it is joined to the cephalothorax being similar to 
that of this latter part; the abdomen is oblong-oval in the male, 
but shorter and more convex in the female ; it is glossy, sparingly 
clothed with fine hairs, and has 4—5 slender, pale angular lines or 
chevrons in a longitudinal series, spanning the hinder half of the 
upperside; these lines are probably very indistinct, even if visible at 
all, when alive, but are sufficiently well-marked when in spirit of 
wine; the hinder extremity of the abdomen is tipped with black ; 
and the spinners are of a dusky yellow-brown colour, suffused with 
blackish ; the form of the cephalothoraz is oval, the caput being 
raised above the level of the thorax ; the clypeus is high, its height 
considerably exceeding the length of the space occupied by the four 
central eyes, and nearly (if not quite) equal to the length of the line 
formed by the first row. 
The legs are sparingly furnished with hairs and a few slender 
nearly erect. bristles. 
The palpi are moderate in length, the humeral and cubital joints 
being slender, the latter short ; the radial joints are large and of very 
peculiar form, difficult to describe and best conceived from the 
figures ; they are of an irregular cup- or calyx-shape, with the digital 
