Transactions of the Royal Society of South Africa. 
distal end of the finger where the apical granules of the median rotvs 
are not appreciahli^ enlarged nor separated from the rest so as to pair 
with those of the inner series. (5 — 7). 
5. Tail more or less granular below^ but only sparingly so in adult 
males, not deeply punctured ; segments I and II with weak 
granular dorsal keels : vesicle with a small tuberculiform 
tooth beneath the aculeus and somewhat rugose below, but 
only feebly so in adult males. Upper edge of caudal segment 
V evenly convex from end to end. The ninth or eighth 
granule from the base of the inner series on the movable 
finger is opposite to the apex of the adjacent median row. 
Pectinal teeth 16-23. Trunk with pale median band bor- 
dered on each side by a broad dark band with >-shaped pale 
markings U. vittatus, Thor. 
6. Like vittatus, but no spine at the base of the aculeus, and 
trunk with a dark median band. Pectinal teeth 15 or 16. 
U. oljimhinguensis, Karsch. 
7. Tail smooth and polished, all the segments very coarsely 
and deeply punctured inferiorly ; the median groove on the 
caudal segments superiorly has rather coarse granules 
throughout except on segment V ; tergites rather strongly 
granulated. Trunk with dark broad median band and 
caudal segments IV and V and the vesicle dark brown U. chuhhi. Hirst. 
Tergites with one crest as in B, the lateral crests being absetit or only 
faintly represented ; at least tine superior and superior -lateral crests of 
the tail are well developed a)zd granular ; lotver surface of vesicle and 
usually of fijth caudal segment granular ; hand in the male slender 
and armed near the base of the immovable finger ivith a denticle lohich 
is usually visible as a tubercle in the female ; basal granules of the 
inner series on the movable finger a little isolated, but at least in the 
distal half they are paired toiih the enlarged and separated apical 
granules of the adjacent median rotvs. (8 — 10.) 
8. Caudal segments I-III, or even IV and V also in the male, 
smooth inferiorly, not keeled, but rather coarsely punctured. 
Basal pectinal tooth in female broadened. Superior edges 
of fifth caudal segment suddenly descending obliquely near 
the posterior end of the segment. Colour greenish through- 
out with some yellow markings on the appendages U.fiavoviridis Ptrs. 
9. Caudal segments I-III granular below, with more or less dis- 
tinct granular keels. Crests of the tail for the most part 
Avell defined and strong. Superior edges of caudal segment 
V convex from end to end ; in neither sex does this form a 
distinct granular crest except at the anterior end and some- 
times to a slight extent posteriorly. Vesicle of adult male 
with an angular prominence beneath the aculeus, the lower 
surface strongly flattened from the neighbourhood of that 
prominence to the base of the vesicle. Female usually with 
a tubercle at the base of the immovable finger . U. triangulifer, Thor. 
