of some new Exotic Coleoptera. 213 



irksome is it then to see the mode in which the names of the spe- 

 cies of some modern groups are manufactured. Here we see the 

 names of Gods and Heroes, in the nominative case, applied to the 

 most diminutive species, mingled with those commemorative of 

 previous writers or collectors in the nominative or genitive cases, 

 and these again with simple adjectives. 



We cannot in these matters do better than follow in the foot- 

 steps of the great masters of our science, and therefore it is that 

 I would advise the plan adopted by Mr. Kirby, of distinguishing 

 the names commemorative of Entomological writers by the ter- 

 mination ella, and those of collectors by the termination ana, or 

 some such like plan. 



The employment of these commemorative names for generic 

 purposes has not been carried so far in Zoology as in Botany. 

 That there was a reason for this at iirst is evident from the 

 words of Fabricius — " Botanica nomina generica hunc in finem 

 introduxerunt, at in Entomologia genera pauciora raroque nova 

 deteguntur."* But Zoologists are now at no loss for new genera, 

 and therefore, except for the sake of preserving the long main- 

 tained uniform plan of employing them specifically in Zoology 

 and generically in Botany, there is no good reason why the 

 name of an Entomologist, as well as that of a Botanist, should 

 not be converted into a generic name. If done at all, however, 

 it ought to be confined to notable genera, respecting which there 

 can be no diversity of opinion, and which, from their singularity 

 or beauty, cannot but be retained conspicuously in the system. 



Section PHYTOPHAGA. 



Family HISPID^. 



Genus DiPHYLLocERA, Weslwood. 



Corpus ovale, antice angustatum, nitido-metallicum, disco ely- 

 trorum punctis magnis excavato. 



Caput parvum, inerme, irregulare. Labrum parvum, trans- 

 versum, angulis anticis rotundatura, ciliatum. Mandibulae 

 parvae, cornege, apice acute bidentatse. Maxillae parvae, 

 bilobatse, lobo externo tenui palpiformi et quasi biarticulato, 

 lobo interno latiori obtuso setoso. Palpi maxillares 4-arti- 

 culati, articulo basali minimo, 2ndo et 3tio majoribus, subse- 

 qualibus, apice crassioribus ; 4to brevi crasso. Antennae 

 elongatae, subincrassatffi, extus serratse, articulis tertio ad 6m 

 sensim externe dilatatis, 8vo, 9mo et lOmo extus valde dila- 



* Op. Cit. p. 119. 



