SIDUSA. . 205 
longitudinal lateral black spots, with a pair of white marks 
forming a “ parenthesis,’’ often broken in the middle to form 
four white bars (as in S. quadriguttata). Legs yellow- 
brown, first pair darker. Vulval area broad, transverse-oval, 
situated on the genital rima, divided into a pair of large 
circular adjacent areas (or discs), each with a spiro-circular 
duct terminating in acentral spot . . . . . . . . « fulvoguttata, sp. un. 
3. Abdomen brown, with an anterior marginal black band, 
followed by a narrow white band not interrupted in the 
middle, continued obliquely at least two-thirds along the 
lateral margin. Dorsal area with the usual circular white 
“ parenthesis-like ” mark on each side. Legs yellow, apical 
half of femora and extreme apex of each segment annulated 
with brown. Vulval area forming a triangular pentagon, 
longer than broad, apex obtuse, with a pair of small adjacent 
circular discs half a diameter from the genital rima, bounded 
by a duct which terminates in a dark spot on the posterior 
lateral margin ofeach . . . . ws . . . . « murcida, sp. n. 
4, Abdomen brown, with two slender transverse white lines 
across the anterior dorsal area, followed by a straight trans- 
verse narrow white band just behind the middle and a short 
oblique white band just above the spinners on each side. 
Legs brown, mottled with white hairs; tarsi paler. Vulva 
consisting of a transverse-oval area, about its own diameter 
from the genital rima, with a pair of spiro-circular ducts 
curving inwards and terminating behind in a pair of piriform 
circular adjacent dark discs, their posterior margins almost 
in contact with the genitalrima. . . . oe ee ee 6Ctreumeincta, sp. 0. 
b. Tibia i. with one or more lateral spines on both sides, 
aa. Vulva not presenting two pairs of adjacent (a larger posterior 
and a smaller anterior pair) dark discs close to the genital 
rima, but a pair of large circular or oval areas either on or 
remote from the rima, either adjacent or divided by a septum. 
a’, Abdomen with an anterior marginal continuous band of white 
hairs. 
1, Abdomen brown, with a black anterior marginal band 
followed by a thin encircling white line, extending 
obliquely a little down the sides; a pair of oblique 
white spots lie above the spinners, connected with a 
narrow white transverse cincture just behind the middle. 
Legs yellow, more or less suffused with brown. Carapace 
with a posterior lateral marginal band of white hairs. 
Vulva consisting of a pair of large oval-circular areas, in 
contact on their inner margins, touching the genital rima, 
