AFFINITY OF MEGASOMIN^ WITH RUTILIN^. 239 



pressed by dotted linesj and founded on the following 

 characters ; — 



Analogies of the ScARABiEiD^ and the CETONiiDiE. 



Sub.families of j„„tn„i^„i rh^^^^f^^^ Sub-families of 



ScarabcEidce. Analogical Characters. Cetoniid<e. 



Geotrupin^,. Mandibles porrect, horny. Rutilin^. 



ScARAB/EiNiB. Mandibles membranaceous. Cetonian^. 



APHODiNiE. Maxillary process membranaceous. Glaphyrin^e. 



T„„„..,^ C Mandibles acute : head short, ob« 7 TiT„ „ 



TROGlNiE. J ^^^^^ ^^^^j^ . ^^^y ^g^y ^^^^^^ j MelOLONTH. NJB. 



f Mandibles obtuse; head and tho-^ 

 Dtnastin^. < rax of the male armed with J- MEGASOMlNiE. 

 I. horn-Uke processes. j 



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 

 Trogince and the Melolonthincp, 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 Megasominee are 

 naturally allied to the Rutilince by the nature of their 

 maxillse, 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 DynastincB into the circle of the 

 Cetoniada', 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 



