82 
The Non-Combecl Eyed Siphonaptera 
ventral and apical margins on the outer side and about as many shorter 
ones on the inner side. The number of bristles is slightly smaller in the 
second specimen. Proximally to the lateral row there are some short 
hairs in both examples. The stylet is about twice as long as it is 
broad. 
Length. ? 2 - 9 mm. and 2 - 3 mm. 
We have two $ ? without host and locality, being most probably 
South American. 
(12) Rhopalopsyllus klagesi Rothsch. (1904). 
(PI. VII, figs. 8 and 9.) 
Pulex klagesi Rothschild (1904 «, p. 620, n. 14, t. 9, fig. 28, t. 10, figs. 34, 39, Caura 
R., Venezuela, off Prochimys ). 
Rho-palopsyllus klagesi Baker (1905 a, pp. 130, 144). 
A small species with the spines of the head strongly developed. 
Head. The rostrum does not quite reach to the apex of the fore¬ 
coxa, the labial palpus consisting of five segments. The first segment 
of the maxillary palpus is a little longer than the third, and the second 
longer than the fourth. There are two rows of bristles on the frons, 
besides a large bristle situated beneath the eye and another behind 
the eye. The occiput bears three rows of bristles. 
Thorax. The pro- and mesonotum have two rows of bristles each, 
the first consisting in the $ of about 12, the second of 14 bristles. On 
the metanotum there are three rows of bristles (in $ 5 to 10, 16, 12). 
The has a few bristles less in these rows than the $. The pleura of 
the mesothorax has 5 strong bristles. The epimerum of the meta¬ 
thorax bears 7 to 9 bristles in two rows (3 to 5, 3 or 4), the first bristle 
of the anterior row being placed near the upper corner of the sclerite. 
Abdomen. In the the anterior row of bristles consists of about 
10 bristles on the first tergite, 6 on the second, and 1 or 2 on the 
third to seventh tergites, the posterior row containing 8 bristles on 
the first tergite, 14 on the second, and 13 or 12 on the others. In the 
$ the number of bristles in the anterior row of the four proximal 
tergites are about 12, 14, 12, 10, and on the fifth, sixth and seventh 
tergites 8, the posterior row consisting of 9 or 10 bristles on the 
first tergite, 14 on the next three, and 12 or 13 on the fifth to seventh. 
The first tergite bears an apical comb of short spines like the meta¬ 
notum, the second to fifth, sometimes even sixth, having only one or 
more such spines. The basal sternite bears in the </ 1 to 4 minute 
