1908) 77 



Thorax. — The comb of the pronotum consists of 28 lo 30 teeth. The mesonotum 

 bears three rows of bristles, and in front of them several more small hairs. On the 

 metanotum there are two rows of bristles. The metathoracical cpinaerum bears two 

 rows of six each. 



Abdomen.— The sternites of segments -1 to 6 bear one bristle on each side, the 

 sternite of segment 7 bearing two. 



Legs— The hind coxa bears three bristles posteriorly at the apex, and a patch 

 of spines on the inner surface. The mid and hind femora have two bristles ventrally 

 before the apex on the outer side, and a subventral row of bristles on the inner side. 

 The hind tibia bears numerous bristles on the outer surface. The longest apical 

 bristle of the second hind tarsal segment reaches to the apex of the fourth segment. 

 The fifth segment bears four stout bristles on each side. 



Modified segments. — $. The eighth sternite of the abdomen (PI. I, fig. 2, 

 VI I I.st)* is very large, the tergite being small. The clasper bears a movable flap 

 which is visible without the removal of the eighth segment. This flap (PI. I, 

 fig. 2, F 1 ) is densely covered with hairs. The ninth sternite (PI. I, fig. IX.st) is not 

 completely divided in the ventral line, the right and left side halves remaining 

 attached to each other proxiinally. In lateral view, as here represented, the free 

 apical lobe of each side is curved upwards, the tip itself being rounded and slightly 

 curved downwards. Length 2'7 mm. 



Two <$ J from the Buwenzori, 6,000 ft., March 10th, 1906, off 



a mouse. 



2. — Pygiopsylla torvus, spec. nov. 



Very close to P. ahalx, Rothsch. (1904), from India. The rostrum, however, 

 reaches only to two-thirds the fore coxa, the fifth segment of the labial palpus being 

 as long as the three preceding segments together. The bristles of the eighth 

 sternite are less numerous ventrally than in P. ahalse. The long movable process 

 of the clasper has the same shape as in P. ahalx, except that the apical portion, 

 which is curved downwards, is longer, there being also fewer minute hairs at the 

 dorsal angle of this process. The ninth sternite is similar to that of P. ahalx, but 

 the central lobe, which bears, as in ahalse, a number of stout spine-like bristles, is 

 more rounded, and the lateral lobe is pointed. 



One S i"i' om th e Euwenzori, 6,000 ft., March 1st, 1906, off a 

 mouse. 



3. — Ceeatophyllus stygius, spec. nov. (PI. 1, fig. 3). 

 Head. —There is a row of seven bristles in front of the eye, the uppermost 

 bristle standing at the antennal groove. The upper edge of the genal process is 

 slightly elevate, a narrow channel extending from the eye to the apex of the genal 

 process separating the edge from the rest of the process. The frontal tubercle is 

 small, being elongate-elliptical in dorsal aspect. The occiput bears two fairly long 

 bristles above the antennal groove, and a subapical row of bristles, the occiput, 

 moreover, being covered like the frons with numerous punctures bearing minute 

 hairs. The rostrum reaches beyond the apex of the fore coxa. 



Thorax. — The pronotum bears two rows of bristles and a comb of 30 teeth. 

 * The figure has been drawn from au unmounted specimen. 



