Iv. Jordan and N. 0. Rothschild 
87 
apparently inaccurate in detail, so we have identified our specimens as 
longicornis, in spite of all discrepancies. The figure given by Enderlein 
of the male genitalia is misleading. This figure also shows 2 ante- 
pygidial bristles, while our specimens have only one such bristle, like all 
members of the genera Parapsyllus and Rhopalopsyllus. In Enderlein’s 
figure of the $, however, only one such bristle is drawn on each side. 
We may therefore assume that the 2 bristles in the figure of the </ 
are an oversight. In the figure of the $ the anal segment bearing the 
stylet is left out altogether, and the small hairs on the mid- and hind- 
coxae, on the abdominal sternites and on the eighth tergite are too 
numerous. 
(2) Parapsyllus simonsi Rothsch. (1904). 
(PI. IV, fig. 1.) 
Pule.v simonsi Rothschild (1904 a, p. 616, t. 9, fig. 30, t. 10, fig. 37, Bolivia, off 
Neoctodon simonsi). 
Rhopalopsyllus simonsi Baker (1905 a, pp. 130, 144). 
Head. The frontal tubercle is situated close to the frontal oral 
corner. There is a row of bristles beneath the eye along the edge of the 
genal process. The antennal groove of the </ extends close to the 
crown of the head, there being a distinct internal incrassation from the 
base of the groove upwards; in the $ this incrassation is vestigial. The 
rostrum reaches to the apex of the forecoxa, the labial palpus consisting 
of five segments. 
Thorax. The mesonotum has a subapical series of thin long spines. 
The metathoracic epimerum bears a row of 3 (</) or 4 (^) bristles 
running from the stigma downwards. 
Abdomen. There are no apical spines on any of the tergites. The 
basal tergite has a large patch of small hairs on the side. The tergites 
bear two rows of bristles in both sexes, the anterior row, which is more 
or less incomplete on all the segments, being represented by only a few 
bristles on the posterior tergites of the 
Legs. The mid- and hindfemora bear a row of 7 or 8 bristles on the 
outside and a row of about 12 on the inner side. The dorsal and 
apical bristles of the hindtibia (PL IV, fig. 1) are extremely long and thin 
in the </, the long bristle of the fifth dorsal pair being longer than the 
tibia. The first midtarsal segment is a little longer than the second. 
The first hindtarsal segment of the J 1 is nearly as long as the second, 
third and fourth together. The first, second and third hindtarsal 
