32 



ON THE CETONIID^ OF SOUTH AFRICA. 



of Goliathus, which I shall call Smithii, after my friend Dr. Smith. There is another species 

 mentioned by M. Schonnherr, and described in his appendix under the name of Cetonia geotru- 

 pina, which I am clearly of opinion belongs to the sub-genus Ischnostoma, and to the section 

 of it called by me Ccelocephalce. 



SECTIONS OF GOLIATHUS. 



'1 Smithii, M'L. 



B. — Male having the anterior 

 tibiffi never like those< 

 of the female. 



A. — Male having the anterior 

 tibiae externally den- 

 tated like those of^ 

 female. 



2 HOPFNERII, M'L. 



.3 GlGANTEI, M'L. 



'4 Inca, Lep. & S. 



^5 DiCRONOCEPHALI, H. 



Thorax semicircular and truncated behind. Body de- 

 pressed. $ anterior tibiae internally multidentate, the 

 teeth very minute, sometimes evanescent. 



Tropical Africa. 



f Thorax trapezoidal and truncated behind. Body depres- 

 sed. $ anterior tibiae without any teeth. 



t 



1 



North Tropical America. 

 I'Thorax sub-lobate behind. Body sub-convex. $ ante- 

 rior tibise without any teeth. 



Tropical Africa. 



fThorax rather circular, lobate behind. Body convex, 

 j Anterior femur with a spine on the inside at the extre- 

 <( mity. Epimeron not prominent between the angles of 

 j the thorax and elytra. 



South Tropical America. 



Thorax circular. Body depressed. Anterior femur with 

 no spine on the inside at the extremity. Epimeron 

 prominent between the angles of thorax and elytra. 



Tropical Asia. 



Section 1. Smithii. 



68. This section inhabits intratropical Africa. It may be easily known by having the elytra 

 wider at the base, by having the body very depressed, by the thorax being nearly truncated 

 behind, or, at least, being only slightly emarginate, to receive the scutellura. In short, this 

 groupe comes very close to the general form and colouring of the sub-genus Coryphe, and 

 the female indeed, not having a horned clypeus, can with difhculty be distinguished from it. 

 The males have almost always the anterior tibiee denticulated on the inside. The Goliathi 

 Smithii have a quadrate head, and admit of the following sub-sections, which I shall not name, 

 as my object is merely to shew their structure and affinities : — 



Sub-sections. Types. 

 $ Clypeus with a single porrected simple horn. G. torquatus, Drury. 



^ Clypeus with three horns, the middle one diverging 



or bifid at the apex. j> Polyphemus, Fab. 



(Mecynorhina, Hope.) j 



A. — Males having the ante- 

 rior tibiss externally 

 tridentate. 



B. — Males having the ante- 

 rior tibiee externally"* 

 without teeth. 



(2) $ Anterior tibise internally denticulated; last joint of 

 the anterior tarsus with a brush on the inside above 

 the unguis. 



(DiCRONORHINA, Hope.) 



i Anterior tibise internally denticulated ; last joint of 

 the anterior tarsus without a brush. 



$ Anterior tibise having no teeth externally or in- 

 ternally. 



1 



G. micans, Fab. 



y G. Smithii, M'L. 



■maculatus, Oliv. 



