of Coleopterous Insects. 52S 



MandibulcB magnaj, supra concavae, subtus convexae, crassaj, 

 exlus rotundatae. 



Labium subtrapezoideum, apice subemarginatum. 



Maxill<B. 



Palpi maxillares quadriarticulati : articulis primo et tertio bre- 

 vibus ; secundo sensim crassiori, extimo incrassato. 



Palpi labiales triarticulati : articulo secundo primo, et tertio 

 eecuiido longioribus et crassioribus. 



Antennce decemarticulatae & fere ut in Jreoda & Pelidnotd. 



Cubitus tridentatus. 



Unguiciili siraplices. 



Prosternum pone pedes anticos rectum, vertice plan atom. 



Mesosternum conicum. 



This genus is nearly related to Pelidnota, MacLeay, but the 

 mandibles are differently shaped and much thicker and stronger, 

 indicating a more substantial kind of food. The sternal processes, 

 which afford constant characters in the present and some other 

 families of p^abricius' great genus Melolontha^ are also different. 

 Mr. Hope having only a single specimen I could not examine the 

 internal edge of the mandibles and maxill£B. 



Peruviana. C. 



Plate xiv. Fig. 3. 

 Long. Corp. Unc. 1-i. 



Hab. in Peru. 



Descr. Corpus supra glauco-viride, obscuriusculum, confluenter 

 punctatum. AnteniKB ferrugineae ; scapo aurato. Palpi ferru- 

 ginei. Elytra humeris & gibbositate anali colore viridi denu- 

 datis, punctata: punctulis minutissimis interspersis. Podex 

 apertus, punctatus. Tarsi caerulescentes. Abdomen aureo vel 

 cupreo-aureo splendore micans. Alitruncus subtus villosus. 



This beautiful species has one peculiarity which seems to dis- 

 tinguish it from all its cognate tribes — its green colour, at least on 

 its upper surface, is merely superficial, and may be remoyed by 

 friction, when only black appears. 



