Rothschild. — CHILIAN SIPHONAPTERA 
27 
six have a row of 4 bristles on each side and before this row 
several smaller bristles. The apical edge of these sternites is 
distinctly emarginate. 
Legs. — The rorecoxa is very hairy. The sinus posteriorly 
near the apex of the hindcoxa is deep and narrow. The hind- 
femur bears ventrally before the apex 3 bristles on the outer 
side and 1 on the inner. The tibiae have several irregular row 
of bristles on the outer surface. The foretibia has 7 long and 
about 13 short and stout dorsal bristles. The hindtibia has 17 
to 20 shorter and only 4 long dorsal bristles. The tarsi are 
very hairy, but the hairs are short. The longest apical bristle 
of the first and second hindtarsal segments reaches just beyond 
the centre of the following segment. The proportional lengths 
of the segments are in the midtarsus 45, 29, 18, 12, 22, and 
in the hindtarsus 73, 58, 36 18, 22. 
Modified Segments. — Female. The seventh sternite is ventra- 
lly produced into a lobe on each side. The eighth tergite is 
completely divided in the dorsal line. It bears about 6 small 
hairs above the stigma, 2 beneath it, and about 12 bristles on 
the ventral portion of the sides. Of these latter bristles the 
most dorsal apical one is much the longest. The stylet is al- 
most cylindrical, and is more than four times as long as it is 
broad at its base. It bears 1 long apical bristle and 2 minute 
hairs near this bristles, as in Macropsylla hércules Rothsch. 
(1905). 
Length: 3-7 mm. 
We have one female off Akodon olivaceus, collected at Valpa- 
raiso, by J. A. Wolffsohn. 
Parapsyllus coxalis, spec. nov. 
A very near ally of P. cocyii Rothsch. (1904), but distin- 
guished at once by the peculiar forecoxa. 
In both sexes the forecoxa is strongly widened posteriorly 
near the base. It bears a transverse row of slender bristles 
