24 PLATE CCCCII. 



Linnaeus defcribes the male as a variety of the female. The male 

 infea, which we have reprefented, is of a beautiful filky greenifli 

 colour, glolled with a braify luftre, the antenna clavated and brown : 

 legs yellow, except at the bafe of the thighs, which are black, and 

 the five laft joints of the abdomen marked in the center with a broad 

 ftripe of dark, or velvetty black. The female has the colours through- 

 out more obfcure, the antennae are dufky, approaching black ; the 

 thorax dark, and the abdomen braffy, but tinged with a fombrous 

 hue inftead of green, and the wings are rather darker than in the 

 male. 



This elegant fpecies is inferted among our Britifh Infects upon the 

 authority of two fpecimens, which we are credibly informed were 

 found in England. Fabricius defcribes it as the offspring of a fhort 

 green-coloured larva, which is masked with two yellow lines, and has 

 a cinereous head, with a reddifh brown band. It feeds on the 

 alder. 



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