SIDUSA. 217 
and transverse. Ventral area pale, speckled. Legs orange-yellow, with slightly indicated dusky 
annulations. 
Tibia i. with lateral spines on the inner side; protarsus i. with lateral spines on both sides; tibie iii, and iv. 
with a single dorsal basal spine. Patelle i. and ii. with one inner spine, iii. and.iv. with a spine on 
each side. Sternum one-half longer than broad, broader in front. Vulva consisting of two large circular- 
oval adjacent areas, fused on their inner margins, about one-fourth a diameter from the posterior margin, 
their outer margins curving inwards and becoming enlarged about the centre of each area. 
Hab. Mexico, Teapa (H. H. Smith); Guavemata (Sarg); Panama, Bugaba 
(Champion). 
26. Sidusa brevispina, sp.n. (Tab. XVII. figg. 11, ll a-c, 3; 12, ¢.) 
Type ¢, gynetype 2, in coll. Godman & Salvin. Total length, ¢ 5, 2 6 millim. 
Coloration similar in both sexes, but lighter in the female. 
. Legs i. and ii. fringed above and below on the femur, patella, tibia, and protarsus with black hairs. 
Carapace brown or black, more or less mottled with white hairs, a ring round the posterior eyes and a 
posterior marginal band being more conspicuous. (The carapace in the male is much rubbed and almost 
entirely devoid of hairs.) Legs i. and ii. black or brown, iii. and iv. paler yellow-brown. Abdomen rich 
black-brown, with an anterior dorsal curved hieroglyphic white band on each side, not connected in front, 
followed to the spinners by a broad central pale band relieved by a series of five or six brown chevrons : 
lateral area pale in the second half, but streaked with black anteriorly ; ventral area pale, with a central 
elongate U-shaped brown spot, encircled by a pale band with two central broken pale bands within its 
area, the pale outer encircling band being flanked with a black-streaked border, these markings varying 
very considerably in different examples. Tibia i. with lateral spines on the inside, iii. and iv. with a 
small dorsal basal spine; protarsus i. with lateral spines on each side. Small eyes much nearer the 
posterior laterals. Tibial spur of palpus long and slender, apical spine of bulb quite short, only slightly 
curved. 
Vulva consisting of a broad transverse oval area, with a large dark reniform spermathecal disc on each side on 
the lateral margin, and a pair of obliquely transverse oval dark discs posteriorly, with a pair of dark 
spots in the central portion of the area, 
Hab. Guatemaa (Sarg). 
27. Sidusa lutea, sp.n. (Tab. XVII. fig. 13, ¢.) 
Type, g, in coll. Godman & Salvin. Total length 5 millim. 
Hab. Mexico, Teapa (H. H. Smith). 
This little species can be distinguished from S. aldicincta by the dull orange scales 
on the clypeus and round the central anterior eyes. Other characters are given in the 
Table. The little fork at the end of the tibial spur is characteristic, though sometimes 
one of the prongs is broken off. 
Had Peckham made any mention of orange scales on the clypeus one would have 
suspected that this species was his S. parvula, for in the figure the tibial spur is very 
clearly bifurcate. 
28. Sidusa spiralis, sp.n. (Tab. XVII. figg. 14, 14a-e, 3.) 
Type, d, in coll, Godman & Salvin. Total length 5 millim., varying in other examples to 10 millim. 
BIOL. CENTR.-AMER., Arachn. Aran., Vol. II., Aprid 1901. 2 Ft 
¥ 
