1900.] Cafalof/ne of Ihc CiAn'ptera of South Africa. 2o 



The larva, like that of Sisijpliiis and of Chjiniiopleiiriis, has the 

 fifth, sixth, and seventh dorsal segments very conspicuously gibbose. 



The South African species are diurnal, but Mr. G. A. K. Marshall 

 informs me that S. iiifenialis is nocturnal. 



I have not been able to identify or to recognise the following 

 South African species : S. costatns, Wied. ; S. palemo, Oliv. ; and 

 S. rcichei, Waterh. The first and third species are most likely 

 identical with some of the species here described, and, judging from 

 Olivier's figure, S. palemo seems to be identical with S. intricatus. 



The Key to the South African species does not give their true 

 affinity, "and it is only intended as a help to identification. These 

 species should be grouped as follows : — 



Type S. cicatricosus. 

 S. parvidus, lucidulus, ruhripcnnis, fiavicornis, fritscJii, alicnus, 

 proximus, cognatus, suri, viator. 



Type *S'. finiebris. 

 S. riKjosHS, ambigicus, intcrstitialis. 



Type S. satyr us. 

 S. prof anus, pacatus, zanibesianus, rixosus, viodcstns. 



Type <S'. infenialis. 

 S. prodigiosus, victallicus, nsiirpator. 



Type S. honcllii. 

 S. cleriais, nlgro-aneus, cuprcus, iiiashiuiiis. 



Type S. savigniji. 

 of . ,. . 



•S'. hottcntotum, convexus, rusticus, licitus. 



I have divided the genus into three sections, which might be con- 

 sidered as sub-genera. The distinctive characters are not of suffi- 

 cient importance to allow of looking upon them as distinct genera. 

 One, Pacliijlomcra, seems restricted to South ^Africa ; the other, 

 Scbasteos, represented at one time by one species, S. galenus, has 

 now one representative on the Congo, and Scarabceus occurs all over 

 Africa, Southern Europe, Persia, Asia Minor, and India. 



It is quite possible that some of the South African species may in 

 time be found to have a much wider range, and that some Senegal 

 kinds may prove to be identical with some of them. An examina- 

 tion of the genital armature of the male has enabled me to discrimi- 



