50 
The Eon-Combed Eyed Siphonaptera 
first hindtarsal segment does not extend to the apex of the second 
segment, while that of the second segment reaches beyond the middle 
of the fifth. The fourth hindtarsal segment is about half as broad 
again as it is long. The fifth segment is small, being very slightly 
dilated towards the apex. In the hindtarsus this segment is shorter 
than the second. There are in both sexes on the ventral side of the 
fifth segment 3 apical bristles on the fore- and midtarsi and 2 in the 
hindtarsi, these bristles being thinner than in L. cheopis. 
Modified segments. </. The eighth sternite bears about 10 
bristles on each side. The clasper has two processes; the shorter 
one is cylindrical, bearing long bristles from near the base to the apex. 
The ninth sternite is obtuse at the tip, bearing here a number of fine 
hairs, there being also several at the ventral margin. The internal 
plate of the penis is curved upwards at the apex, which is pointed.— 
$. The apical margin of the eighth tergite is rounded; the segment 
bears on the outside an apical row of about 10 bristles, besides about 
10 lateral ones. The ninth sternite, which lies inside the seventh, is 
different from that of all other species of Loemopsylla. Above the 
ventral edge of this sternite (PI. YII, fig. 4, ix. st.) there is a bracket¬ 
like rod, which is the chitinized apical portion of the duct of the 
receptaculum seminis. At the tip of this rod there are two short, 
but strongly chitinized sclerites, which most likely serve as a clasping 
organ during copulation. 
We have a series of specimens collected by C. H. B. Grant, as 
follows: Deelfontein, Cape Colony, March 1902, off Otomys brant si ; 
Umfolozi, Zululand, July 1904, off Mus spec. 
(12) Loemopsylla niloticus spec. nov. 
(PI. V, fig. 3.) 
Closely allied to both L. nubicus and eridos, but nearest to the 
latter, differing especially in the bristles of the episternum and epi- 
merum of the metathorax and the first abdominal sternite. 
Head. The apical corner of the first antennal segment of the d is 
less produced than in L. nubicus and cheopis, the hairs on this segment, 
however, are placed nearly as in cheopis. 
Thorax. The pronotum bears 17 to 19 bristles on the two sides 
together, the mesonotum 14 to 16, and the metanotum 16, the numbers 
varying to a certain extent, as in other species. There are 5 bristles 
on the side of the mesosternite. The episternum of the metathorax 
