the Coleopterous Genus Diphucephala. S23 



seneo, Isevi : pedibus viridibus; tarsis cyaneis, tibiis anticis bi- 

 dentatis. 

 Long. Corp. 4 lin. 



This species may be distinguished from all the foregoing by its 

 rich copper-like colour, and the following characters : The head not 

 very deeply emarginate in the male ; thorax sparingly but coarsely 

 punctured, divided by an irregular transverse indentation ; the dor- 

 sal channel is deep, and gradually increases in w^idth from the apex 

 to the base, leaving a longitudinal elevated smooth surface in the 

 centre ; the basal portion of the dorsal channel forming, as it were, 

 two oblong fovese, which are thickly and finely punctured ; the lateral 

 margins of the thorax are dilated in the middle, so as to form an ob- 

 tuse tooth on each side. Elytra coarsely punctured, the punctures 

 confluent ; the anterior tibiae as in D. splendens ; the inner portion of 

 the (bifid) claws very thick. 



Tlie Rev. F. W. Hope, the Rev. W. Kirby, and Mr. Wm. Spence 

 have each lent me specimens of this beautiful species for examina- 

 tion. There is a slight variation of the colour in different speci- 

 mens, some being of a brassy green, and others more inclined to 

 copper. There are also specimens in the collection of J. G. Chil- 

 dren, Esq., which I have since examined. 



Sp. 11. D. PARVULA. 



D. viridi-senea vel cuprea, supra et subtus pilis albis decumbenti- 

 bus sparse tecta : capite punctato: thorace punctis magnis no- 

 tato, foveis 2 longitudinalibus parallelis submediis basin versus, 

 marginibus lateralibus subdentatis : elytris rugosis : scutello 

 Isevi : tibiis anticis inermibus. 



Long. Corp. 24- lin. 



D. parvula is much smaller than either of the foregoing. The 

 clypeus in this species is rather narrow, not deeply emarginate ; the 

 head is rugosely punctured on the upper surface, with the exception 

 of a small smooth and shining space towards the posterior portion. 

 Thorax coarsely punctured, divided transversely by an indentation, 

 which becomes deep and forms a large fovea near the lateral margin 

 of the thorax : the dorsal channel is scarcely to be traced on the an- 

 terior part ; posteriorly it is divided, and forms two oblong parallel 

 fovese, having an elevated space between them ; the lateral margins 

 are indistinctly toothed ; the anterior tibiae are simple. 



I am indebted to the Rev. F, W. Hope for several specimens of 

 this insect. This gentleman has hkewise deposited specimens in the 

 collection of the Entomological Society. 



