36 The Non-Combed Eyed Siphonaptera 
the long subapical bristle. The most ventral bristle of the seventh 
tergite is far apart from the next. The sternites of segments 4 to 7 
bear on both sides together usually 4 bristles, sometimes 5, the third 
segment having one or two more, while the basal sternite bears 1 to 3 
ventral bristles. 
Legs. The forecoxa has 16 to 18 bristles. The hindcoxa, which 
bears a comb of 8 to 12 spines, is rather strongly rounded behind, the 
sinus being very shallow. The forefemur has 4 to 6 bristles on the 
outer surface and 3 on the inner. The midfemur bears a row of 6 
bristles on the inside, the hindfemur one of 7 to 15 (usually 8 in </ 
and 10 in $). All the femora have one subapical bristle on the 
outside. The tibiae have a single lateral row of bristles, the row 
containing 8 to 10 on the hindtibia. The hairs on the anterior surface 
(at and near the anterior edge in a lateral view) are very few in number. 
The longest apical bristle of the hindtibia reaches beyond the apex of 
the first tarsal segment. In the fore- and midtarsi (PI. Ill, fig. 4) the 
first segment is shorter than the third ; while the second midtarsal one 
is more than twice the length of the first. The bristles of the hindtarsi 
are long, the longest apical one of the first segment extending beyond 
the tip of the second, and that of the second segment reaching the apex 
of the fifth. The fifth segment is large in all tarsi, being much widened 
apically. The side-bristles of the segment are long, the interspace 
between the third and fourth bristles being wide, with a subdorsal hair 
in between them. The segment bears in all the tarsi two apical ventral 
bristles, both being slender, the one being short and the other long. The 
proportional lengths of the segments 1 are as follows :— 
Segment 
First 
Second 
Third 
Fourth 
Fifth 
Foretarsus: 
<f 
8 
12 
9 
5 
22 
7 
11 
9 
6 
21 
? 
9 
15 
11 
7 
25 
7 
10 
8 
5 
20 
Midtarsus: 
<? 
12 
24 
13 
8 
24 
11 
24 
13 
8 
23 
? 
16 
32 
16 
9 
26 
10 
20 
11 
6 
21 
Hindtarsus: 
<? 
37 
31 
17 
9 
25 
34 
30 
16 
9 
25 
? 
47 
39 
19 
11 
26 
30 
26 
13 
8 
22 
1 We give the measurements of a large and of a small specimen. 
