( 561 ) 



c. Mesonotiim laterally with ouly two rows of bristles, there being a large 



naked area between these rows and the base. IX. st. of S truncate, and 

 VIII. st. apically membranaceous ; in ? all bristles of VIII. t. at a distance 



from the edge Ct. cophurus spec, no v. 



Mesonotnm with three rows of bristles and additional small bristles on the 

 sides as well as back, besides the basal row. In i IX. st. acuminate or 

 apically strongly widened ; in ? the most distal bristle of VIII. st. placed 

 at the apical edge ......... d. 



d. S3 e. 



? ? i. 



e. 6S. (This se.x not known of Ct. atonms and engis.) 



IX. St. apically very strongly dilated, the ventral angle being produced 



into a sharp tooth Ct. li/cnsius spec. nov. 



[and ? Ct. engis Roths. (1907)] 



IX. St. subrotnndate at apex, bearing a ventral row of short, stout, 



strongly chitinised spiniform bristles . Ct. acanthnius spec. -nov. 



IX. st. subacuminate or subtrnncate, with long and small bristles, or 



only with short ones, all slender . . . . . . ,/ 



/. Process of clasper divided by a distinct sinns into two lobes . . g. 

 Process of clasper not divided . . . . Ct. eumeces spec. nov. 



g. Sinus of process of clasper quite shallow on outer side, movable process 

 more than twice as long as it is broad . Ct. ansorgei Roths. (1907) 



The sinus deeper, movable process twice as long as it is broad . . h. 

 h. Apex of movable process much more rounded dorsally than ventrally 



Ct. cabirus spec. nov. 

 Apex of movable process almost symmetrically rounded 



Ct. caleeatus Waterst. (1910) 

 i. ? ¥ . (This sex not known of Ct. eumeces.) 



Head of receptaculum seminis shorter than tail. . . . .;'. 



Head of receptaculum seminis longer than tail . . . . k. 



j. Last bristle of ventral row on VIII. t. half the length of the preceding bristle 



Ct. engis Roths. (1907) 



Last two bristles of that row almost equal in size Ct. Irjcosius spec. nov. 



k. No bristles above stigma of VIII. t. . . Ct. acanthuriis spec. nov. 



One or more bristles above stigma of VIII. t I- 



I. VII. St. with a narrow and deep sinus 



Ct. ansorgei Roths. (1907) and cabirus spec. nov. 

 VII. St. with a triangular sinus . . Ct. caleeatus Waterst. (1912) 



VII. St. witli a very broad upper lobe, lower lobe effaced 



Ct. atomus spec, nov 



Dinopsyllus gen. nov. 



The aiitennal groove extends to the vertex, as in Falaeopsylla Wagn. (1902), 

 to which genus the new one is closely allied. The frontal tubercle is vestigial, 

 being small and rounded, and having in some siMcimens the api)earance of a 

 tran.s|iar(Mit lid placed on a tunnel ; in most examples the tubercle is exceed- 

 ingly indistinct (text-figs. 3:i and 40) There is a vertical row of five spines 

 along the ant<'nnal groove, but in one species {I), ingens) this comb is reduced 

 to one or two spines, or is absent. The vestigial eye is placed above the row, and 



