404 Descriptive Catalogue [1898. 



second oblong, the others moniliform, ninth to tenth a little larger, 

 sub-globose, eleventh large ovate, acuminate ; prothorax oblong, as 

 much attenuate in front as behind ; elytra very much attenuate 

 towards the base with the shoulders very oblique, a sutural stria and 

 another dorsal stria a little arcuate, posterior margin with strong, 

 thick and black setae forming a brush close to the sutural angle ; 

 abdomen shorter than the elytra, first dorsal segment very large, 

 flat, sub-triangular behind with the apex truncate, the following ones 

 small, depressed, and altogether triangular ; legs strong with the 

 femora inflated. Length 1*70-1 "90 mm. 



Two examples. Sex uncertain. 



Hab. Cape Colony (Uitenhage). 



Teibe CTENISTINI. 



Gen. SOGNOEUS, Eeitter, 

 Verh. Naturf. Ver. Briinn., xx., p. 202. 



Entirely similar to the genus Ctenistes, and differs only by the 

 antennae, which are similar in both sexes ; in the male the joints 3-7 

 are never lenticular, and the club is not formed by four very long and 

 cylindrical joints as is the case with Ctenistes, but the antennae in 

 the males of Sognorus are similar to the antennae of the females of 

 the latter. 



I confess that such a generic character is not of very great import- 

 ance ; in all the species known hitherto the body is shorter and 

 stouter, and the facies really different, but in the new species here- 

 described the body has exactly the same facies as in Ctenistes, and 

 the unique specimen is unquestionably a male with the antennae of 

 a female. This new species, which forms a transition between 

 Sognorus and Ctenistes would lead to the conclusion that both those 

 genera are synonymous, which conclusion will very likely be proved 

 by further discoveries. 



This genus includes all the species of North America recorded as 

 Ctenistes, some Asiatic species, a European one, one from the West 

 Coast of Africa (simonis, Eeitter), and a new species from South 

 Africa. 



When I referred to this genus in ' Eevue d'Entomologie,' 1890, 

 p. 143, I said that it included also the Australian species. This is 

 an error ; the Australian species will form a new genus (Ctenisophus, 

 Eaffr.) on account of the presence of a strong infra-ocular spine which 

 is not found in Ctenistes or Sognorus. 



