58 
The Non-Cornbed Eyed Siphonapterci 
4. Group of species. 
Episternum of metathorax separated from the sternum. Hindfemur not angul- 
ate beneath near the base. Hindcoxa broader than in the three previous groups, 
posteriorly with two slender subapical bristles. Stigma of the proximal abdominal 
segments hardly larger than the groove for insertion of the first bristle of the 
tergites. Ventral angle of metasternum acuminate. To this group belong Species 
No. 17—21. 
(18) Loemopsylla erilli Rothsch. (1904). 
(PI. II, figs. 6, 15; V, fig. 2; VII, fig. 5.) 
Pulex erilli Rothschild (1904 a, p. 610, n. 5, t. 8, figs. 16 and 17, t. 9, fig. 22, 
Deelfontein, off Zorilla striata, Suricata tetradactyla, Xerus capemis). 
Easily distinguished from the other species of Loemopsylla which 
have the hindfemur non-angulate by the long maxillary and labial 
palpi. 
Head. The maxillary palpus reaches to the apex of the forecoxa, 
while the rostrum extends beyond the trochanter, being especially long- 
in the $. The subapical row of bristles of the occiput contains 4 
bristles on each side, the first and second being placed wide apart. 
There are about 30 small hairs above the antennal groove in the </• 
The first antennal segment of the </ is long. 
Thorax. The bristles on the three tergites on the two sides 
together, are in the </ 12,10,8 or 9, and in the $ 12, 11 to 13, 10 or 11. 
The mesopleura bears 3 bristles. In the $ the epimerum of the 
metathorax has two rows of bristles (3, 4 or 5), the anterior row being- 
represented in the ^ by one bristle and the second by 3 to 5. 
Abdomen. The first tergite bears two rows of bristles, the first 
row containing, on the two sides together, in the </ 2 or 3 bristles 
and the second row 4, the numbers being in the $ 3 or 4 and 
5 respectively. On the second to seventh tergites there are on the 
two sides together the following numbers of bristles: , 10 on tergites 
2 to 6, and 6 or 7 on the seventh ; $ , 10 to 13, 11 or 12,12, 10 or 11, 10 
or 11, and on the seventh 7 or 8. The sternites bear in the 4 bristles, 
the first sternite having only 2, on the two sides together. In the 
$ the basal sternite bears 2 ventral bristles . and on each lateral 
surface 4 or 5 more, the numbers on the next 5 sternites being 8 to 16, 
6 to 9, 6,6, and 4 respective^, on both sides together ; the small number 
of bristles on the seventh sternite being a very remarkable character. 
The subapical bristle of the seventh tergite is shorter than the second 
midtarsal segment. 
