34 
The Non-Combed Eyed Siphonaptera 
Subapical bristle of $ not on a process ; seventh sternite of $ with many less 
than 15 bristles ; hindfemur with 2 bristles on the outer side .h 
h. Subapical bristle of seventh abdominal tergite at least as long as the second 
hindtarsal segment.i 
This bristle considerably shorter than the second hindtarsal segment .n 
i. Epimerum of metathorax with 4 bristles.Species No. 7 
Epimerum of metathorax with at least 10 bristles .k 
k. Longest apical bristle of second hindtarsal segment hardly reaching the base 
of the fifth segment .Species No. 10 
This bristle reaching to the middle of fifth segment or beyond .1 
l. First midtarsal segment hardly two-thirds the length of the second. 
Species No. 9 
First midtarsal segment three-fourths the length of the second .m 
m. Both processes of the clasper slender.Species No. 8 
One of the two processes broad, its upper edge rounded.Species No. 6 
u. On the epimerum of the metathorax at least one bristle situated above the 
stigma .Species No. 12 
All the bristles of the epimerum of the metathorax ventral to the stigma. 
Species No. 11 
o. Hindcoxa pear-shaped, the comb situated near the apex .p 
Hindcoxa more or less sinuate behind near the apex.r 
p. Rostrum shorter than the maxillary palpus.Species No. 15 
Rostrum longer than the maxillary palpus.q 
q. Apical margin of the seventh abdominal tergite strongly chitinized dorsally, 
projecting backwards.Species No. 17 
This portion of the segment hardly more chitinized than the rest of the segment, 
projecting very slightly backwards.Species No. 16 
r. Rostrum reaching beyond the trochanter .Species No. 18 
Rostrum at the most reaching to the apex of the forecoxa ..s 
s. Rostrum shorter than the forecoxa .t 
Rostrum extending to the apex of the forecoxa.Species No. 22 
t. First hindtarsal segment with 5 apical bristles which extend to the apex of 
the second segment or beyond.Species No. 20 
First hindtarsal segment with less than 5 bristles which reach to the apex of the 
second segment .u 
u. Rostrum longer than the maxillary palpus ..'.Species No. 19 
Rostrum as long as the maxillary palpus; upper process of the clasper ($) 
broad, truncate.Species No. 21 (and 23 ?) 
1. Group of species. 
Episternum and sternum of metathorax fused, the sternum either bearing a short 
hair or none (see diagram, p. 25). The fifth segment of all the tarsi has in both 
sexes two ventral apical bristles, one being long, the other short. Hindfemur 
angulate (with the exception of L. longispinus), bearing one subapical bristle on the 
outside. Manubrium of clasper short; penis with a kind of brush at apex. To 
this group belong Species No. 1—5. 
