BY WILLIAM MACLEAY, F.L.S., &C. 385 



SECTION I. 



Legs reddish, not metallic. 



1. DlPHUCEPHALA SERICEA, Kirby. 



Linn. Soc. Trans. Lond. XII. p. 463 ; Waterh. Trans. Ent. 

 Soc. Lond. I. p. 217, pi. 22, fig. 1 ; Bonn, Handb. IV. 2, 

 p. 114; Blanch. Cat. Mus. Paris, p. 98; D. viridis, Sturm. 

 Cat. 1826, p. 204. 



Head and thorax green and subopaque, densely and very 

 minutely punctate, and densely clothed with a short decumbent 

 pile ; the latter almost obsoletely canaliculate in the middle, and 

 slightly foveate and angled on the sides. Scutellum smooth, 

 depressed in the middle. Elytra bluish-green, sericeous, lightly 

 rugose-punctate, with two slightly elevated ridges on each and 

 clothed thinly with rows of a decumbent ashen pile. Under 

 surface more densely pilose than the upper, the pygidium large, 

 rather convex, of a brilliant green with whitish pile, the penulti- 

 mate segment with a fringe of long hairs. The legs are red, the 

 tarsi rather darker, and clothed with whitish hairs, the fore tibiae 

 are triangularly ridged and have two short bluntish teeth slightly 

 recurved and close together on the outer apex, and the inter- 

 mediate have two acute spines on the inner apex. 



Length, 4J lines. 



Hob. — Coast Districts of New South Wales, generally frequent- 

 ing Acacia trees. 



2. Diphucephala rufipes, Waterh. 



Trans. Ent. Soc. Lond. I. p. 225 ; Burm. Handb. IV. 

 p. 115. 



Of a brilliant green with red legs. Head and thorax very 

 minutely and densely punctate, with a very short pubescence, the 

 clypeus of the male moderately emarginate and reflexed with the 

 angles not acutely pointed. The thorax has the dorsal channel 

 narrow and the lateral foveae small. Scutellum smooth and 



