K. Jordan and N. C. Rothschild 
81 
Abdomen. The first tergite has, like the metanotum, the usual 
comb of short apical spines, a few such spines occurring also on the 
next two or three tergites. There are two rows of bristles on the tergites, 
the first row containing in our two specimens 12 and 13, 16 and 22, 
14 and 20, 12 and 19, 11 and 19, 10 and 11, 8 and 10, bristles 
respectively, the second row consisting of 10 and 11 bristles on the first 
segment, 16 and 17 on the second to fifth, 13 and 11 on the sixth, and 
13 and 14 on the seventh respectively. The apical bristle of the seventh 
tergite is as long as the first and second midtarsal segments together. 
The basal sternite bears a large patch of small hairs on the side. The 
next sternite has a row of 14 or 18 bristles on the two sides together, 
the upper bristles being short and there being also several short bristles 
in front of the row. The sternites of segments 4, 5 and 6 bear each a 
row of 8 or 12 or 14 bristles, the seventh sternite having a row of about 
12 and ventrally in front of the row 4 or 6 more. As in cavicola the 
edge of the pygidial plate is only slightly raised anteriorly, projecting 
much less than in R. australis. 
Legs. The forecoxa bears about 40 bristles. The hindcoxa has 
3 bristles posteriorly at the apex. The mid- and hindfemora bear a row 
of bristles both on their inner and outer sides, there being a number 
of additional bristles on the lateral outer surface of the midfemur and 
1 to 3 subapical lateral bristles on the outside of the hindfemur. The 
hindtibia has about 10 lateral bristles on the outside and about 
10 shorter ones along the anterior (= ventral) side. The longest apical 
bristle of the hindtibia does not reach to the apex of the first tarsal 
segment, while the longest apical bristle of the second hindtarsal segment 
extends to the base of the fourth segment. The third segment of the 
foretarsus and the fourth of the hindtarsus are much longer than they 
are broad, the third midtarsal segment being about twice as long as it is 
broad. The fifth tarsal segment is small, being in the foretarsus twice 
as long as it is broad. The measurements of the mid- and hindtarsi 
are in the larger and more hairy specimens (the type of name) 20, 29, 
15, 9, 24, and 57, 41, 22, 12, 26, respectively; in the smaller specimens 
the segments measure in the midtarsus 17, 22, 12, 8, 21, and in the 
hindtarsus 46, 30, 17, 9, 22. 
Modified segments. $. The eighth tergite bears 6 or 7 bristles 
above the stigma in the larger specimen, and 4 in the smaller one, the 
apical bristle being far stouter than the others. From the stigma 
downwards there is, in the larger individual, a row of 6 or 7 large bristles 
and 6 to 10 small ones, while there are about 10 bristles along the 
Parasitology i 6 
