1908.] NEW SPECIES OF FLEAS. 619 



Modified segments. — The seventh abdominal sternite has a deep 

 triangular sinus (PI. XXIX. fig. 8), the upper lobe being broad, but 

 tapering to a point. The bi'istles on the eighth tergite are more 

 numerous than in P. robinsonx, to which the present species is 

 allied. At the apical margin of this segment, there is one long- 

 bristle, and above it are situated two short ones and beneath it one 

 moderately long one. Thei-e is a row of 5 or 6 long bristles 

 along the ventral edge, the most distal bristle being the longest 

 of all. Above this bi'istle there are two more long ones, and 

 further proximad about 16 short ones. The anal sternite is 

 rounded beneath near the base, bearing on this rounded portion a 

 row of 4 bristles on each side, there being a further pair of bristles 

 on each side close to the apex. 



Length : 3" 6 mm. 



One $ from Benguella, Angola, 200 miles from the coast, 

 found at an altitude of 4780 ft. by Dr. F. Creighton "VVellman 

 the host not being stated ; received from Mr. Oldfield 

 Thomas, F.R.S. 



2. Pygiopsylla rainbowi, sp. n. (Plate XXVIII. fig. 5 ; 

 Plate XXX. fig. 13.) 



The present species apparently agrees in all details, except the 

 modified abdominal segments, with P. colossus Rothschild 1906, 

 ■of which only one 9. is known. 



cj . The small eighth tergite bears about 8 short bristles above 

 the stigma. The eighth sternite (PI. XXX. fig. 13), on the other 

 hand, is very large, being covered with numerous bristles, of which 

 those placed near the dorsal and apical edges ai-e longest and thickest. 

 The ventral margin of this segment (in lateral view) is incurved 

 twice, the segment being incised in the mesial line from the apex 

 to the point where the ventral margin bulges out. The clasper (CI.) 

 is distallj'^ produced into a thumb-like process, which is shorter 

 than the pointed and slightly curved movable process (F). The 

 manubrium (M) is triangular, ending in a short process. The 

 vertical arm of the ninth sternite (IX. st.) is club-shaped, and at 

 the apex truncate, with the distal margin of the widened portion 

 rounded. The horizontal arm is of nearly even width, its upper 

 margin being twice incurved. This arm bears numerous small 

 hairs on the apical as well as proximal portions, there being in 

 addition on each side a row of five ventral bristles, of which the 

 most proximal one is the longest and thickest. The penis ends 

 in a short and sharp hook, which points doAvnwards. The anal 

 tergite (X. t.) is triangular in side-view, being about twice as long 

 as it is bi'oad at the base. The tenth sternite is much slenderer 

 than the tei'gite, bearing two long apical bristles on each side. — 

 5 . The apical margin of the seventh abdominal sternite is 

 rounded, being ventrally obliquely truncate and bearing a small 

 sinus in the centre (PI. XXVIII. fig. 5). The eighth sternite has 

 fewer bristles than in P. colossus at and near the apical and 



