SIDUSA. 211 
sternum in both sexes. But the palpi of the male and the vulva of the female are 
remarkably similar to those of 8. festiva. 
5. Sidusa marmorea, sp.n. (Tab. XV. figg. 10, 10a, 2.) 
Type, 2, in coll. Godman & Salvin. Total length 4 millim. 
Carapace yellow, cephalic area and eyes margined with black, with two brown, convergent, indistinctly defined 
bands behind the posterior lateral eyes, and a broad pale marginal band, with a narrow dark brown 
marginal line. Abdomen (pubescence worn off) very pale olive-green, with a pale central dorsal scalloped 
band, broadly dilate above the spinners, and other large pale mottlings on the sides ; ventral area and sides 
pale, mottled with pale olive-green. Legs and palpi pale yellow, each segment with a dusky black basal 
and an apical annulus. 
Vulva consisting of a broad transverse oval area, with a pair of dark circular adjacent, confluent, spermathecal 
spots on the posterior margin, each connected with an orifice by a narrow duct visible beneath the 
epidermis, and beneath each orifice lies a very indistinct pale oval spermathecal spot. Tibiz iii. and iv. 
without dorsal basal spines; tibia i. and protarsus i. with lateral spines on both sides. 
Hab. Panama, Bugaba (Champion). 
6. Sidusa olivacea, sp. n. (Tab. XV. figg. 11, lla, ¢.) 
Type, 2, in coll. Godman & Salvin. Total length 5 millim. 
Carapace brown, more or less clothed with white hairs, with an indistinct pale band running from the central 
stria to the posterior margin, and one or two pale submarginal spots. Cephalic area and eyes margined 
with black. Abdomen olive-green, with a central deeply scalloped pale band, divided into three, the first 
portion elongate-triangular, the second with a large divergent lobe on each side, the third forming a 
narrower triangular spot above the spinners; sides olive-green, ventral area pale. (The pubescence, 
however, is worn off, so that it is difficult to describe exactly the pattern and colour of the abdomen.) 
Legs yellow, with a basal and an apical dusky annulus on each segment. 
Small eyes distinctly nearer the anterior laterals. Protarsus i. without lateral spines ; tibia i. with 1—1 lateral 
spines on each side; protarsus and tibia ii. with lateral spines ; tibice ili. and iv. with a dorsal basal spine. 
Vulval area forming a broad triangle, with a pair of closely approximate circular spermathecal spots half 
their own diameter from the posterior margin, connected with the usual pair of orifices by a narrow 
curved duct, while in front lie another pair of elongate dusky spermathecal spots. 
Hab. GUATEMALA (Sarq). 
7. Sidusa pallida, sp.n. (Tab. XV. fig. 12, 2.) 
Type, 2, in coll. Godman & Salvin. Total length 4 millim. 
Carapace dull brown, clothed with white hairs; no marginal band of white. Abdomen pale ochreous-yellow, 
speckled with dusky black and with a central broad /\-shaped black mark, and an indistinct wedge- 
shaped dark mark above the spinners (very similar to that of S. vittata). Legs yellow, obscurely spotted 
with dusky brown. . 
Tibia i. with lateral spines on the inner side ; protarsus i. with no lateral spines on either side ; tibie iii. andiv. 
with a small dorsal basal spine. Small eyes distinctly nearer the posterior laterals. Vulva consisting of 
a pair of oval areas, narrower in front, their outer margins slightly sinuous, with a pair of very largo 
internal brown adjacent discs close to the posterior margin. 
Hab. GuatEMALa (Sarg). 
bo 
iI 
++ 
bo 
