AFFINITY OF MEGASOMIN^E WITH RU TILING. 239 



pressed by dotted lines, and founded on the following 

 characters : 



Analogies of the SCARAB/EIDJE and the CETONIID^E. 



Sub-families of AndloeirnL Character* Sub-families of 



Scarabteldte. Analogical Lfiaracteis. Cetoniidce. 



GEOTRUPINJE. Mandibles porrect, horny. RUTILIN^E. 



SCARABJEIN^E. Mandibles membranaceous. CETONIAJVJE. 



APHODIN.E. Maxillary process membranaceous. GLAPHYRIN^E. 



TROT N JF C Mandibles acute ; head short, ob7 MELOLONTHivaJL 



i tuse, smooth ; body very convex, j 



r Mandibles obtuse; head and thoO 



DYNASTIN^:. < rax of the male armed with >MEGASOMIN^:. 

 C horn-like processes. 3 



It will thus be seen, that if the difference in their 

 food, and the opposite construction of their tarsi, are 

 not considered, these ten groups would, in the con- 

 struction of their mouth, be almost exactly alike. It 

 has been stated, as an additional analogy between the 

 Trogina and the Melolonthince, that they both frequent, 

 in preference, sandy soils : we must not, however, attach 

 too much importance to this alleged fact ; for we have 

 not found that our common chafer is more abundant in 

 such tracts, than in others ; and if the remark were 

 general, Africa, the most sandy region in the globe, 

 should therefore be the metropolis of this race, which 

 it certainly is not. 



(213.) In further proof that the Megasomince are 

 naturally allied to the RutilincB by the nature of their 

 maxillae, and their sub-porrect mandibles, the opinion 

 of Latreille may be quoted ; for this celebrated ento- 

 mologist has considered these relations as establishing 

 an affinity between the two groups. This remark is in 

 complete unison with the disposition we have here made ; 

 for, by removing the Dynastince into the circle of the 

 Cetoniadce, and reducing Anoplognathus into a compo- 

 nent part of the Rutilince, there is no intervening 

 group to disturb the evident connection. 



(214.) Having so fully illustrated the analogies of 



