119 



matter with which so many of these insects are 

 adorned, would form a very interesting subject of 

 inquiry. 



Sect. 2. — Thorax trapezoidalis. 



Mecynorhina, Hope. 



$ Tibiae anticae dentibus utrinque armatae. 

 Tibiae intermedin dente parvo medio armatae. 



Type of the Genus. Gol. Polyphemus, Fab. 



A second species of this genus is in the possession 

 of Mr. Joseph Hooker, of Glasgow. At present it 

 is undescribed. 



DlCRONORHINA, Hope. 



$ Tibiae anticae interne dentibus armatae, 4-pos- 

 ticae inermes. 



$ Tibiae anticae externe dentibus tribus, 4-pos- 

 ticae unico medio armatae. 



Type of the Genus. Cetonia Micans, Fab. 



To this genus belong also Cet. 4-maculata, Oliv. 

 (which is evidently the same as Gol. Daphnis 

 Buquet,) and also Goliathus Grallii of the same 

 author. 



