from the South-east Region of Equatorial Africa. 468 
of the same hue parallel to each lateral margin. The falces are 
powerful, conical, vertical, armed with teeth on the inner sur- 
face, and are of a yellow-brown colour tinged with red at the 
extremity. The maxille are short, straight, and broadly rounded 
at the extremity; and the lip is semicircular, but somewhat 
pointed at the apex. These parts are of a dark-brown colour, 
that of their extremities being yellowish-white. The sternum is 
heart-shaped, pointed at the extremity, and has prominences on 
the sides, opposite to the legs; it is clothed with hoary hairs, 
and has a yellowish-brown hue, the medial line being the palest. 
The legs are robust, provided with hairs and spines, and are of 
a brown colour, with annuli of a darker hue; the first pair is 
the longest, then the second, and the third pair is the shortest ; 
the tarsi are terminated by claws of the usual number and struc- 
ture. The palpi resemble the legs in colour, and have a curved, 
pectinated claw at their extremity. The figure of the abdomen 
is ‘somewhat quadrilateral, but the sides are rounded, and the 
anterior is broader than the posterior extremity; it is clothed 
with short hairs, projects over the base of the cephalothorax, 
and has two prominent tubercles on each side, and two large, 
parallel, obtuse ones situated above the spinners; the upper 
part, on which there are numerous circular glossy convexities, 
of various dimensions, in bas-relief, is of a yellowish-brown 
colour, an obscure, strongly dentated, yellowish-white line pass- 
ing from each anterior tubercle to the two obtuse posterior tu- 
bercles ; the lower part of each side is strongly tinged with dull 
yellow, and the under part has a dark-brown hue mingled with 
dull yellow, and a curved yellow band on each side: the sexual 
organs are well developed, and of a dark-brown hue tinged with 
red; their anterior margin is semicircular, and below it there 
are two glossy protuberances placed transversely ; the branchial 
opercula are of a pale brown colour, and on each side of the 
spinners there are three dark-brown triangular spots, which are 
united at their bases. 
Three females of Epetra dorsuosa, two of which were adult 
and the other immature, were comprised in the collection. This 
species differs from the petra opuntie of Dufour (see Walcke- 
naer’s ‘ Hist. Nat. des Insect. Apt.’ tom. ii. p. 140), to which it 
is closely allied, in various particulars, and may readily be dis- 
tinguished from it by the glossy convexities on the upper part 
of its abdomen. 
Genus Gasreracantaa, Latr. 
Gasteracantha frontata. 
Gasteracantha frontata, Blackw. Ann. & Mag. Nat. Hist.ser.3.vol.xiv. p.40. 
The collection contained two females of this species, specimens 
32% 
