218 Mr. G. R. Waterhouse's Monograph oji 



nato, triangular!, leviter in medio depresso, Isevissimo ; elytris 

 subseriatim punctatis, lineis duabus longitudinalibus eleva- 

 tiusculis : pedibus rufescentibus, pills niveis obtectis ; tarsis 

 piceis ; tibiis anticis ad apicem obsolete bidentatis. 

 Long, corp, 4 — 5 lin. 



Obs. The two tooth-like processes at the apex of the anterior tibiae, 

 in this species, are obtuse and placed rather close together ; the 

 terminal segment of the abdomen is nearly of the form of an equi- 

 lateral triangle, finely punctured, convex, and partially covered with 

 white decumbent hairs. 



I am indebted to the original describer of this species (the Rev. 

 W. Kirby) for the loan of a specimen for examination, and likewise 

 to the Rev. F. W. Hope and J. G. Children, Esq., for the loan of 

 several specimens of both sexes. There are specimens in the collec- 

 tions of the Entomological and Zoological Societies, and the British 

 Museum, which I have examined. 



Sp. 2. D. Childrenii. 



D. viridis, supra sericeo-nitida, subtus pilis albis decumbenti- 

 bus : capite confluenter punctato : thorace sub lente punctu- 

 latissimo, dorso subcanaliculato : elytris subseriatim punctatis : 

 tarsis cyaneis ; tibiis anticis bidentatis. 



Long. corp. 4 — 5 lin. 



Obs. This species is the only one, excepting D. sericea, which has 

 a silk-like gloss on the upper surface of the body. The head and tho- 

 rax are of a dull golden green colour ; the elytra are of a bluish 

 green, and the margins and suture frequently of a brighter and 

 gold-green hue ; they are rather faintly punctured (as in D sericea) ; 

 the punctures are disposed in striae and scarcely confluent. The ter- 

 minal segment of the abdomen is somewhat triangular, very spa- 

 ringly furnished with yellowish white pubescence ; the sides and a 

 longitudinal patch in the centre are bare : in the female there is a 

 longitudinal fovea in the middle and one on each side. The scu- 

 tellum is smooth and in the form of an equilateral triangle : the 

 anterior tibiae are bidentate externally, and furnished with a distinct 

 tooth internally at the apex. 



Through the kindness of J. G. Children, Esq., who has lent me 

 all his specimens of Diphucephala for examination, I have been 

 enabled, since the reading of this paper, to add two new species, 

 Z>. affinis, and the one above described, which I have taken the li- 

 berty of naming after that gentleman. 



