( 568 ) 



species of Tfhiopsyllux, and its upper apical angle projects distinctly. The bristles 

 of tbe ninth sternite. thongh somewhat variable, exhibit a common ])lan of arrange- 

 ment in all the s])ecimens. There is an apical series of seven to nine, of which the 

 two posterior bristles — occasionally separated by a short one — are long. In a 

 proximal direction several minute hairs follow, then a solitary long bristle, and one 

 or more minnte hairs, and finally a row of small and moderately long bristles 



(text-fig. 34). ?. The seventh sternite has nearly the same ontline in all the 



species, the apical margin bearing a broad and shallow sinns. This sclerite has in 

 longifrons a postmedian row of from fifteen to nineteen long bristles on the two 

 sides together, there being from forty-seven to over sixty smaller bristles in front 

 of the row. The eighth tergite bears about fifty bristles below the stigma and about 

 twenty above it, on each side. The apical margin of this tergite is sinuate above 

 the ventral angle, which is pointed, a thin bristle being placed in the sinus and three 



FiG. .S4. — Dhif'psifJhts ItiTKjifrom. 



larger ones above it. There is an oblique subapical row of four bristles on the inner 

 surface of the eighth tergite. The receptaculum seminis has a hump on the upper 

 side of the head. 



Length (mounted specimens) : $ 3-5-4 mm. ; ? 4-3-5-2 mm. 



'1 S i and 1 ? from Aberdare Mts., British East Africa, February 13, 1010, 

 off Taelii/ori/ctes aitdax ; — tyjie. 



1 ? from Mt. Kiuangop, Aberdare, Febrnary 24, 1910, Otoim/s irroratus ehjonis. 



2 ? ? from Rumrnti, British East Africa, OctoberSl, 1910, off 27(«/««w«ys spec. 

 1 (J from Rnmruti, British East Africa, October 28, 1910. 



1 ? from Naknra, British East Africa, September 21, 191(1, off Arvicanthis 

 aht/sxitnctix ruhesceiig. 



1 d from Mt. Kenia, British East Africa, December 18, 1910, off Epirnvs spec. 

 1 S from Kigezi, Uganda, April 28, \'d\\,oi Lophiiromys spec. 

 1 ? from Nalasanji, Uganda, Jnly 8, 1911, oS Lophuromijs spec. 



