128 l^"^""^' 



— Thorax al, the base as wide as the base of the elytra, its puncturation feeble 



or evanescent, very much less deep than that of the elytral striae 



aurea, Geoffr. 

 {helxines, Brit. coll.). 



C. iiitidula, L. — This species calls for little remark ; the head and 

 thorax are sometimes crimson instead of golden -green. Within the 

 last few years it has become not nncommon at times on a small group 

 of feral aspens by the side of the river Churn at Colesborne. 



C plutiis, Latr.— Specimens with the elytra blue or greenish-blue 

 are var. foudrasi, Weise, whether the thorax is concolorous with the 

 elytra or not. I have not seen any native examples of this form. 

 Mr. De la (Jarde sent me a specimen (Wimbledon, 8.02, ex coll. E.A.B.) 

 with brownish-bronze elytra and coppery-red thorax. Mr. Champion 

 tells me that nearly all the varieties occur together in Sheppey. 



C. aui'cita, Marsh. — In the prevalent form of this species the head 

 and thorax are coppery-crimson or golden-green, and the elytra more 

 or less dark green; but there is a blue form, of which, however, I 

 have only seen two examples taken at Woking by Mr, Champion on 

 the same occasion. In these the head and thorax are dark green, 

 the elytra dark blue, and the antennae and legs piceous ; the name 

 suhcyanea is suggested for this form. I have a specimen from St. 

 Faiths, Norfolk, taken in July, 1881), in which the elytra are of the 

 coppery-purple colour that one frequently finds in Donacia sericea. 

 There is reason to think that C. fulvicornis var. j^idcof^m^, Weise, is 

 frequently mistaken for this species ; but, whatever may be the 

 colour of the antennae and legs, aurata may always be distinguished 

 from fulvicornis by having the thorax broader in proportion to its 

 length, the elytral interstices much wider in proportion to the rows 

 of punctures and flatter in appearance, and the striae finer and less 

 coarsely punctured. In my experience aurata is far less common 

 than fulvicornis. Niqricoxis, All., is the name given to specimens 

 with dark legs from the Caucasus. 



G. fulvicornis, Fab. — In its prevalent form this species has red- 

 yellow antennae and the upper-side entirely bright green, well meriting 

 the names fulvicornis and smaragdina. Var. picicornis is the name 

 given by Weise to specimens with the antennae and legs more or less 

 piceous ; examples with the antennae dusky are not uncommon and 

 I have seen a very dark specimen from Great Salkeld (Britten) in 

 which the upper-side is dark bronze-green and the legs, as well as the 

 antennae, nearly black. In Mr. Champion's collection are three 

 specimens with the upper- side dark blue, with dark antennas and legs, 



