40. Mr. J. Blackwall on new species of 
gins. Mandibles subconical, vertical, hairy in front: maxille 
gibbous near the base, on the under side, somewhat pointed at 
the extremity, and inclined towards the lip: sternum heart- 
shaped: these parts are yellowish brown, the sternum being the 
palest. Lip triangular, brown, the apex, which is pointed, bemg 
paler. Legs moderately long, provided with hairs and sessile 
spines; they are of a yellowish brown colour, with red-brown an- 
nuli at the joints; second pair the longest, then the first, fourth 
pair rather the shortest. Each tarsus is terminated by two 
curved, pectinated claws, and is provided with a climbing appa- 
ratus. Palpi yellowish brown. Abdomen broader in the poste- 
rior than in the anterior region, but pointed at the spimners; it 
is convex above, covered with yellowish gray hairs, and its ante- 
rior extremity, which projects a little over the base of the ce- 
phalo-thorax, is notched in the middle; the upper part is yel- 
lowish brown, with numerous small, brown spots, four indented 
ones, more conspicuous than the rest, forming near its middle a 
trapezoid whose anterior side is the shortest, the two posterior 
ones being the largest of the four; between the trapezoid and 
the spinners is a series of transverse, curved, brown lines, formed 
of minute spots, which diminish in length as they approach the 
latter, and in the middle of the anterior part is an obscure, lon- 
gitudinal, pale brown band, which has an angular projection on 
each side; an irregular dark brown band extends along each side 
to the anus, whose upper margin is penetrated by two oblique, 
yellowish white spots, the posterior of which is the larger; and 
the under part is yellowish gray, marked with four longitudinal 
lines of minute pale brown spots. Spinners brown. Sexual or- 
gans conspicuous, dark brown. Plates of the spiracles yellow. 
The body and limbs are supplied with compound sessile hairs. 
The male resembles the female, but it is smaller and darker-. 
coloured, and the relative length of its legs is the same, but 
their absolute length is greater, a leg of the second pair mea- 
suring 34ths of an inch. Palpirather long, of a yellowish brown 
colour, with the exception of the digital joint, which is pale brown; 
the radial joint is shorter than the cubital, and projects two 
apophyses from its anterior extremity, one on the outer side, 
which is long, straight, pointed, and dark brown, the other, which 
is situated underneath, is shorter, of a red-brown colour, and has 
a protuberance on its inner side, and a prominent brownish black 
process at its base, on the outer side; the digital jomt is some- 
what oval, being more curved on the inner than on the outer 
side; it is convex and hairy externally, concave within, except at 
the extremity, which is compact, and comprises the palpal organs; 
they are moderately developed, not very complicated in structure, 
with a black pointed spine curved round their-extremity and 
