CARABIDJE. BEMBIDIUM. 187 



B. tricolor, var. C., Jacq.-Duv. Ann. Soc. Ent. 10. 121. 

 Peryphus neglectus, Dawson, Ann. Nat. Hist. 3. 214 (1849). 



Head and thorax dark metallic green and shining, palpi testa- 

 ceous, with the penultimate joint slightly testaceous brown, the 

 antennae fuscous black, with the basal, second, third and basal 

 half of the fourth joints pale testaceous, all the joints except the 

 second rather long. Thorax subcordate, rather narrow, sides 

 rounded, posterior angles right angles, sometimes more acute 

 and prominent, disk convex, base depressed and punctured more 

 or less between the basal fovea?, which are also punctate within. 

 Elytra oblong, wide, twice as broad as the thorax at the base, 

 humeral angles a little rounded, but not narrowed, sides parallel, 

 disk deeply punctate-striated, the outer stria? obsolete and the 

 apex smooth, the third interstice with the usual impressions; the 

 whole surface suffused with reddish testaceous, except the suture 

 which is obscure brassy green and a very indistinct fascia of the 

 same colour behind, but under a powerful magnifying glass the 

 surface appears more or less cloudy rufous with an obscure 

 elongate testaceous patch at the shoulder extending downwards 

 till it almost reaches another nearer the extremity, which slopes 

 obliquely towards the suture and forms with the one on the other 

 elytron a semilunar band; legs testaceous red. Length 2| lines. 



M. Jacquelin-Duval has united this insect with Carabus 

 tricolor, Fab., without any doubt. No typical example, however, 

 of that species has been found in Britain. Elaphrus testaceus, 

 Dufts., presents the true characters of our insect ; I have there- 

 fore retained the name. 



It is found rarely in the north of England. 



18. B. decorum: capite thoraceque viridi-aneis, hoc cordato, 

 postice angustato, basi obsolete punctulato; elytris elongatis, 

 subparallelis, punctato-striatis, viridi-cyaneis ; antennis 

 basi pedibusque rufis. 



Carabus decorus, Panz. Faun. 73 (1789-1810). 

 Elaphrus decorus, Dufts. Faun. 2. 207 (1812). 

 Bembidium decorum, Sturm, D. F. 6. 122. Dej. Spec. 5. 135 ; 



Icon. 4. 401. pi. 216. Heer, Faun. Helv. 132. Jacq.-Duv 



Ann. Soc. Ent. 9. 568. 



Peryphus viridi-ceneus, Steph. Mand. 2. 15, et Manual, p. 55. 

 P. albipes, Steph. Mand. 5. 386, et Manual, p. 55. 



This species is more elongate than any of the other green 

 species which follow it, and also flatter. Head and thorax brassy 

 green, the former has the usual oblong impressions on each side 

 rather rugged, and is distinctly punctured behind the eyes ; the 



