1876.) 247 



specimens with Kowarz's species are the alulje, and his silence con- 

 cerning the peculiar termination of the abdomen, and, therefore, for 

 the present the name must remain doubtful. 



C. CUPEEUS, Mcq. 



This species is distinguished from the rest by its front coxae, 

 ■which are whitish-yellow at the tip, and more or less so on the front. 

 The British specimens are, I believe, always considerably smaller than 

 the continental, but no other difference has been detected. I took 

 the males once freely at Faygate, in Sussex, on May 25th, and have 

 taken it in May and June at Denmark Hill, St. Mary Cray, and 

 "Windsor Forest. 



C. PALrsTEis, n. sp. 



Obscure ceneus vel cupreus, antennarum niqrarum articulo tertio 

 majusculo, tegulis'pallide ciliatis,femorihus niyris, coxis anticis albo- 

 pilosis {JUong. vix. 1 /^«.). 



^. Fronte aryenteo-micante, facie angustd, argented, palpis Jlavis, 

 ciliis oculorum inferis confertis alhidis, pedibus nigris, genubus luteis. 



$ . Obscure cupreus, palporum nigrorum opice pallescente, tibiis 

 Jl'.ividis vel luteis. 



(? . Dull green, thorax slightly shining, eyes separated by a narrow silvery face, 

 palpi yellow, cilia of the lower orbit rather abundant and conspicuous, white, frons 

 more than one-third the width of the head, bluish-green rendered silvery by tomen- 

 tum ; antennae with the tliird joint rather large, ncilher rounded nor pointed. Thorax 

 green in the middle, coppery on the sides, rendered dull by minute tomentum, hal- 

 teres orange, alixlse bright yellow with pale yellow fringes. 



Legs greenish-black, with yellowish knees, front coxa; with conspicuous white 

 pubescence, tibiae very slightly bristly, usual bristle on middle pair and two or three 

 bristles on hind pair ; in one specimen, probably immature, the anterior tibia; and base 

 of tarsi are brownish. Wings rather dark, with more or less of a yellowish tinge. 



? . Bather larger, more coppery, thorax very dull, face dull white, about a 

 quarter the width of the head, palpi rather large, whitish at the tip ; front coxsb 

 luteous at the extreme tip, and there with yellow hairs, on the disc with white hairs, 

 femora slightly shining, tibia) brownish or yellowish. Wings clearer than in male. 



This species is evidently allied to G. suavis, Lw., but is darker and 

 duller coloured, sMrtt'es being blue or violet ; the face of suavis is green, 

 and "mire angusta," shining white near the antenna?, while in pal ustr is 

 it is all shining white, and not very narrow, in fact rather broad for 

 this genus. Suavis has the legs and abdomen with a Avhitish pubes- 

 cence, and yellow anterior tibia*, while I expect all mature palustris 

 have only the knees luteous. The female of suavis is greener, the 

 face and frons dirty grey. C. albibarbus, Lw., is also blue or green, 

 with but little tomentum, and no sihery shimmer on tin; frons. 



