104 Descriptive Catalogue [1897. 



Ctenistes imitator, Eeitter, 

 Deutsch. Ent. Zeit., xxvi., 1882, p. 179. 



Fulvous, elytra paler, palpi testaceous, body covered with 

 ochreous squamae ; head elongate, trifoveate, anterior fovea a little 

 smaller than the others ; antennal tubercle hardly sulcate ; eyes 

 large ; palpi long, second joint arcuate at apex and clavate, third 

 subequal in length and width and produced in a very angular shape 

 outwardly, fourth fusiform, transverse, appendages long ; prothorax 

 a little longer than broad, slightly conical, hardly rounded laterally, 

 base with oblong foveae ; elytra rather elongate, oblique laterally, 

 attenuate at base, oblique at shoulders, dorsal stria entire, hardly- 

 arcuate ; abdomen with the dorsal segment hardly twice the length 

 of the first. 



Female : Antennae slender, elongate, third to sixth joints elongate, 

 slightly decreasing in length, seventh longer than the third, eighth 

 subglobose, ninth ovate, nearly twice the thickness of the seventh 

 but nearly equal in length, tenth hardly thicker than the preceding 

 one but longer, eleventh equal in length to the two preceding ones 

 put together but hardly thicker, subcylindrical, acuminate. Length 

 2-26 mm. 



This species differs from the preceding one by the more elongate 

 head, the much more slender antennae, the elytra more narrowed at 

 base and more arcuate laterally. 



I cannot detect any appreciable difference between a Natal example 

 and Eeitter's type from the Gold Coast, except that it is more 

 densely squamose and that the antennae are very slightly longer, 

 but in the absence of the male it is not possible to consider it as a 

 distinct species. 



Hab. Natal (Frere) ; one female. Originally described from 

 Western Africa (Gold Coast). 



Gen. ODONTALGUS, Eaffr., 

 Eev. Mag. Zool:, 1877, p. 8, pi. hi., fig. 5. 



Short, thick, convex ; head provided with an antennal tubercle, 

 cheeks hardly tuberculate in front, a palpal fovea underneath ; eyes 

 more or less conspicuously divided by a squamose canthus ; first 

 joint of maxillary palpi inconspicuous, second large, elongate, 

 strongly clavate, third smaller, subtriangular, fourth large, elongate 

 and very much clavate ; antennae elongate or thick, club of the male 

 triarticulate, that of the female Particulate, eighth joint smaller than 

 the others ; prothorax subconical, tuberculate ; elytra much broader 

 than the prothorax, carinate ; abdomen marginate ; intermediate 

 coxae little distant, posterior ones very far apart ; metasternum 



