18A8. 



59 



. Shining, the interstices being very obsoletely punctured. 

 Sub-opaque, the interstices being thickly punctured. 

 Varies greatly in size, the males being generally smaller than the 

 females. Local, but common, when found, in England Horning and 

 Deal. I have not found it in Scotland. 



9. G. opacm, Sahl. Ovate, not very convex, above bluish-black, 

 shining, the sides brassy, the elytra rather finely punctate-striate, 

 the internal stria? being evidently^ finer, especially towards the 

 base, than the outer ; under-side brassy-black, legs red, with the 

 exception of the claws. Long. 2i— 3"'; lat. 1^ — 15'". 



. Shining, the interstices being very obsoletely punctured 

 $ . Not so shining, the interstices being thickly punctured. 

 Yar. The upper surface being altogether dull and opaque. 



This species is very closely allied to the preceding, and, like it, 

 varies considerably in size ; it is, however, on the average considerably 

 smaller, and the striae of the elytra are finer, especially the inner ones ; 

 some of the varieties, however, come very close to one another. Local, 

 but common, in Scotland — Edinburgh, Glasgow, Inverness, Galloway. 

 Also at Horning, in company with G. marinus ; I have not noticed it, 

 however, from farther south. I think I am right in my determination 

 of this species. Moreover Suff'rian recorded it as British twenty-five 

 years ago, though it has not yet made its appearance in oui* Catalogues. 



The dull variety is very curious, resembling G. minutuSt in whose 

 company it was found at Invercannich, Tnvernesshire. 



2. — Oeectochilus, Lacordaire. 



The generic characters readily suffice to distinguish the single species, 

 O. villosus, Fab. It is oblong, ovate, convex, the upper surface 

 pubescent, and tolerably thickly and finely punctured, fuscous in 

 colour, the elytra without any strije, the under surface and legs 

 reddish-testaceous. Long. 3"'. 



This species is local and of nocturnal habits. I have seen it 

 gyrating by moonlight in Loch Ken, in Galloway. It surpasses any of 

 the Gi/rini in agility, so that when disturbed, the eye fails to be able to 

 follow its motions. In the day-time it remains concealed under stones 

 and logs by the side of the water, but the instant it is disturbed it darts 

 away, so that it is very difficult to secure. By lifting, however, very 

 gently the logs and stones where it occurs and dropping them instantly 

 into a net, a good number may be procured. I captured in Galloway, 

 last summer, between 30 and 40 specimens on the under-side of a single 



