204 MANDIBULATA. COLEOPTERA. 



of the thorax and of the elytra are frequently tinted with gold or rich copper : 

 the thorax is sometimes green^ and the elytra blue, and vice versa. 



Occasionally abundant in some of the metropolitan woods, espe- 

 cially at Darenth and Coombe, in June, on the birch. " Baron- 

 wood." — T. C. Heysham., Esq. " In woods (near Swansea), not 

 common." — L. W. Dillwyn, Esq. 



Sp. 16. Populi. Supra viridi-aeneus nitidus, glaber, rostro pedibus corporeque 

 subtus coeruleo-violaceis, fronte profundius canaliculatd. (Long. corp. 2 — 3^ 

 lin.) 



Cu. Populi. Linne.—^\\. Populi. Steph. Catal. 191. No. 1981. 



Glabrous, above hrassy-green, shining, bodi/ beneath, legs, and rostrum violet- 

 blue ; the latter greenish at the base : head oblong, punctured, luith a deep 

 furrow between the eyes : thorax finely punctured, with an obscure dorsal 

 channel: elytra brassy-green, rather deeply punctured, the punctures some- 

 what regularly disposed in striae : tarsi and antennse black. The upper 

 surface is sometimes a little tinted with coppery. 



Much less abundant, and more local than the preceding species : 

 I have frequently taken it in an old aspen that formerly stood at 

 the entrance of Coombe-wood. " Abundant on young aspen. Lee- 

 wood, Surrey." — A. Cooper, Esq. " On aspen in a wood near 

 Blenden in Kent." — Mr. Ingpen. " Epping." — Mr. Douhleday. 



Sp. 17. Bacchus. Oblongus, aureo-cupreus nitidus, longiits pubescens, antennis 

 tarsisque nigris, elytris rugoso-punctatis, obsolete striatis. (Long. corp. 4 — 5 

 lin.) 



Cu. Bacchus. Linne. — Don. i. pi. 34./. 1.— Rh. Bacchus. Steph. Catal. 191. 

 No. 1982. 



Oblong, of a shining golden-copper, clothed with a long pubescence : head con- 

 vex, rather deeply punctate : rostrum with impressed striolas and punctures, 

 with the apex black: thorax considerably narrowed in front, thickly and 

 coarsely punctured : elytra rounded at the apex and gaping, entirely of a 

 golden-copper or rich purple, with deep excavated punctures, and transverse, 

 elevated wrinkles, obliterating, as it were, the striae: legs elongate, femora 

 clavate, bright golden copper: tibiae fuscescent-copper : tarsi and antennae 

 black. 



This splendidly beautiful insect is not only variable in tint, the colours being 

 sometimes bluish or greenish, but the hues change according to the position 

 in which the insect is held, in respect to the light. 



Very rare : I believe Kent is the only county in which specimens 

 have occurred. " Near Birch-wood." — Mr. Weatherhead. " Taken 



