GYEINUS. 125 



a. Punctures on elytra scarcely feebler toward suture. 



01»long oval. U})per-si(le Llackisli-blue, sides of thorax 

 and elytra bronzy. L. 2| 1. liatlier common in Scotland, 

 but local. (t. mi nut us, Fab. 



h. Punctures on elytra much finer toward suture. 



Ovate. Upper-side blackish-blue. Elytra with coppery 

 bands, in which the rows of punctures stand. L. 3 — 3| 1. 

 Not uncommon near Newcastle. G. ur in at or, 111. 



J5. Under-side wholly or chiefly black, legs reddish. 



a, Pieflexed margin of thorax and elytra reddish. 



I, Body ovate or oval. 



1 . Punctures on elytra distinctly finer toward suture. 



Convex. Upper-side blackish-blue, suture and side 

 margin of elytra more or less brassy. Breast and last 

 abdominal segment sometimes reddish. L. 3 1. Common. 



G. na tutor, Scop. 



2, Punctures on elytra scarcely finer toward suture. 



Eatlier flat. Upper- side black -blue, side margins 

 greenish-bronze ; apex of abdomen reddish. L. 2| 1. 



G. Suffriaiii, Scrib. 



II, Body elongate, oblong, with nearly parallel sides. 



Moderately convex ; upper-side blue-black. Elytra very 

 long, their apices more rounded than in G. distinctus, their 

 punctuation finer toward suture, interstices impunctate. 

 L. 3| 1. Pare. G. hicolor, Payk. 



III, Body oblong ovate. 



1, Interstices on elytra impunctate. 



Flatly arched. Upper-side bluish-ljlack. Punctures on 

 elytra finer toward suture, interstices impunctate. L. 3 1. 

 Rather common. G. distinctus, Aub. 



2, Interstices on elytra indistinctly punctured. 



Eather flatly arched. Upper-side bluish-black. Punc- 

 tures on elytra finer toward suture, interstices (when strongly 

 magnified) visibly punctured. Breast and apex of aljdo- 

 men sometimes reddish. L. 3|- 1. Pare. 



G. c a spins. Men. 



3, Interstices on elytra closely and distinctly punc- 

 tured. 



