22 



ON THE CETONIID^ OF SOUTH AFRICA, 



Snoplocheilus tomentosus is sub-emarginate, the species appears to belong to a diflPerent section of the sub- 

 genus when compared with AnoplocJieilus spinitarsis. If on dissection of the mouth they should agree 

 with the genus Cetonia, these two sj)ecies A. setosus and A. tomentosus will evidently enter into the 

 last Trichoid section of the sub-genus Cetonia. 



Sub-genus 3. .Diplognatha, G. P. 

 40. This sub-genus of M. Gory agrees with Anoplocheilus in having the end of the maxilla 

 armed with sharp teeth. Indeed this is the character of the whole genus Macrominus ; but 

 the terminal process is in Diplognatha distinct from the base of the maxilla, and is furnished 

 on the outside with a brush, as in the genera Trichinus, Cetoninus, and Gymnetinus. The 

 mentum also is broad, truncated, scarcely emarginate in front, and having the corners rounded 

 off. But for the rest I refer to MM. Gory and Percheron's description of this groupe, which 

 appears to admit of the following sections. As all the sections, hou^ever, are not yet known, 

 it is difficult to place them accurately ; and I give the following arrangement only provi- 

 sionally : — 



SECTIONS OF DIPLOGNATHA. 



Maxillee having one 

 tooth 

 process 



1 Carbonari^ /Terminal process of maxillse ending in a blunt tooth. In- 



1^ habit Asia. 



^Terminal process of maxillse ending in a sharp tooth. In- 



tooth on the inner <^ 2 Porphyre^. <j 



habit Africa. 



3 Gagatesi^ ^''Terminal process of maxillse ending in two sharp teeth. 



Inhabit Africa. 



41. The first of these sections is numerous in species. The type of it may be considered to 

 be Cetonia crucigera of Olivier. Cremastocheilus maculatus of Gory appears to form another 

 section. The general colour of the first section is black, often variegated with white spots. 



42. To the second of these sections appears to belong the common Cape insect, Scarabaus 

 carnifex of Linnseus. 



Sp. 13. (Macrominus) Diplognatha carnifex, Fab. 



Cetonia Carnifex, Fab. Syst. Eleuth, 2. 143. 39. 

 Diplognatha Carnifex, G. P. p. 124. tab. 18. fig. 2. 



43. The two following Cape species belong to the third section : — 

 Sp. 14. (Macrominus) Diplognatha hebrsea, Oliv. 



Cetonia heir cea, Oliv. tab. 12. p. 115. 

 Diplognatha hehrcea, G. P. p. 125. tab. 18. fig. 8. 

 Sp. 15. (Macrominus) Diplognatha sUicea, n. s. 



Desc. Diplognatha atronitida glabra polita, clypeo vix punctato palpis labialibus baud ultra 

 mentum prominulis, elytris antice latioribus, tibiis anticis extus vix tridentatis, mesosterno 

 subacuto. 



Long. Corp. 15 lines. 



Note. MM. Gory and Percheron seem to have confounded this last species with the true Cetonia 

 Gagates of Olivier, which is a Senegal insect, and smaller, having the labial palpi stretching beyond the 

 mentum, the sides of the elytra parallel, the anterior tibiee tridentate, and the mesosternum rather obtuse. 

 I have found Diplognatha Gagates common at Porto Praya in the Cape de Verds ; but I cannot say that it 

 is a flower-frequenting insect, as I never met with it except in the Cocoa-nut groves below the town, and 



