20 



With respect to Gideon, and the following species 

 denominated Oromedon, it is probable they are but 

 varieties of the same insect. In my cabinet are 

 various intermediate specimens connecting them. 



Sp. 3. ActcBon. — To the genus Megasoma K. also 

 belong G. Simson, Elephas, Typhon of Fabricius, 

 and also Searabseus Hector of Gory, lately published 

 in the Annals of the Entomological Society of France. 

 The details of the genus Megasoma Kirby, will be 

 found in the 14th volume of the Linnean Transac- 

 tions, part 3, p. 566. 



Sp. 6. Atlas. — Of the genus Chalcosoma Hope. 

 By a communication received from my friend 

 De Haan of Leyden, I am informed that S. Chiron, 

 Oliv. is considered as the female of Atlas. If such 

 is the case, both sexes have the thorax cornuted. 

 The species which I described under the names of 

 Dynastes Hardwickii, Childrenii & Kirbii, form 

 then a subgenus, as the females have the thorax 

 smooth and rounded. To the genus Chalcosoma 

 belong G.Caucasus, Fab., Dyn. Hesperus, Erichson, 

 and I have little doubt that there are in the English 

 and Continental collections three if not four un- 

 described species. 



Sp. 8. Molossus. — I am here inclined to form a 

 new genus, comprehending those Copridae which are 



