Amongst the specimens of Chalcothea smaragdina G. & P. ¹) of the Leyden Museum, I lately found a female specimen from Sumatra of a distinct although nearly allied species, which, as I am informed by Mr. van Lansberge, bears in several, especially french collections the name of Chalcothea affinis Voll. ²). The specimen of the new species, which I propose to call