34 REMARKS ON THE LINNJEAN GENERA 



the Sinodendron with the Lucanides ; but in the third 

 volume of the Regne Animate, and more especially under 

 the article Lamellicornes in the Dictionnaire d'Histoire 

 Naturelk, he appears to think that the Cetoniida come the 

 nearest to the Lucanida of all the Petalocera. " Dans 

 quelques espkes les mandibules des males sont beaucoup 

 plus grandes que celles de femelles; c'est ce qu'on ob- 

 serve dans les Lucanes et dans plusieurs Cetoines exoti- 

 ques; d'autres males de ce dernier genre ainsi que ceux de 

 Goliath ont Vextremitt anterieure du chaperon diti see en 

 deux parlies representant quelquesfois des comes. De ces 

 rapports et de quelques autres fen ai conclu que les 

 Cetoines et les Trichies etoient de tous les Scarabees 

 de Linnaus, ceux qui se rapprochoient le plus de ses 

 Lucanes." But though the genus Cetonia does indeed 

 always with this author immediately precede Lucanus, I 

 cannot but think that, after having so acutely pointed out 

 the affinity which Sinodendron bears to both Oryctes and 

 Lucanus, he must have given the above reasons for uniting 

 this last to Cetonia, more from an experience of the diffi- 

 culty of placing them otherwise, according to our modern 

 systems, than on any very evident grounds of affinity. If 

 I may be allowed to differ in opinion with an entomologist 

 of such celebrity, and to whom the science is so much in- 

 debted, I should say that the Cetoniida, are of all the Pe- 

 talocera the most unlike to the Recticera, and that their 

 membranaceous mandibles can never be assimilated to the 

 immense corneous mandibles of the Lucanidce. On the 

 other hand, I hope to prove that no insects in either co- 

 lumn of the Petalocera resemble the Recticera so much, 

 in general form and construction of the mouth, as the Ge- 

 otrupidce and Dynastidce. And with respect to the June- 



