GREEN Oil LIVING VEGETABLE MATTER. 7 o 



Articulo basilari, magno, crasso, deflexo, tuberculi- 



formi ; 

 Capitulo 3-phyllo, ovato, longitudinem antennarum 

 totam pntter articulum basilcirem ccquante. 



Labrum memhranaceum, clypeo absconditum, aiit vix pro- 

 minulum, margine antico ciliato, emargiuato, la- 

 teribus rotimdatis. 



Mandibulee compresses, tenues, laticeolatce, membrana sub- 

 qnadrata intus auctce, htijus latere externa pro- 

 ducto et basi vix cornels vel cornets. 



Maxilla; cornecc, subtrigonce, latere interna membranaceo, 

 ciliato ; processu terminali integro, serpius compresso, 

 setosOfJimbriave hirsuto, laciniave instructo. 



Palpi maxillares articulo ultimo aliis longe majore, elon- 

 gato. 



Palpi labiales menti lateribus excavatis inserii, articulis 

 duobus baseos brevibus. 



Men turn et Labium connata, emarginato-bijida. 



Caput quadratum, rarissime cornutum, clypei lateribus sa- 

 pius parallelis, diametro longitudinali et transversa 

 aquatis aiit illo majori; oculis prominulis vix clypeo 

 insertis sed illi ajffixis. Corpus ovatum, scepius de- 

 pressumy semper planiuscul urn. ThorAx forma irre- 

 gulari ; Scutellum sapius distinctum. Sternum 

 seepe productum. Pedes graciles. Tarsi unguibus 

 (Zqualibus, acutis, indivisis. 



Observations. 



The membranaceous texture of the mandibles and 

 maxillae of the Cetoniidtz proves that these insects in the 

 perfect state are intended to live on vegetable juices. Thus 

 the Cetonia Morio, Fab., and probably many others of the 



