78 



appears to be peculiar to the New World. The 

 clava of the antennae has only three lamellae. 



Sp. 14. Acuminatus. — Now an JEgus of Mr. 

 MacLeay. The reader is referred to the Horae 

 Entomologicse for the generic characters of this 

 group, the species belonging to it are numerous. It 

 is singular that the Baron de Jean still considers this 

 insect as a Dorcas, although he has adopted other 

 genera from the above writer. He appears to have 

 omitted noting this well defined form ; all the species 

 known at present belong to Asia or New Holland. 



Sp. 18. Cancroides. — Now a Dorcas, according 

 to Megerle ; this singular insect will, however, at 

 some future time, be the type of a distinct genus. 



Sp. 19. Lunatus. — From the description given by 

 Fabricius, I rank this species as an ^Egus. It has 

 never fallen under my inspection. 



Sp. 20. Piceus. — Now a Ceruchus MacLeay ; 

 Megerle gave the Plinyan name of Tarandus, as a 

 generic one, to include the European species named 

 Tenebrioides and Silesiacus. I prefer, however, 

 that of Ceruchus M.L., as the former is only a 

 catalogue name, and the details of the genus having 

 also been first published by Mr. MacLeay, is the 

 reason I retain it. Lucanus Quercus Knoch appa- 

 rently belongs to this genus. 



