70 CARABID.E. POGONUS. 



name luridipennis. It has also been taken at Lymington 

 Salterns ; near Sandwich ; and in profusion on the muddy banks 

 of the Thames in the Isle of Sheppey. 



2. P. chalceus : ceneus ; thorace subquadrato, postice subcoarc- 

 tato, angulis posticis subrectis ; elytris oblongis, subparal- 

 lelis, striato-punctatis, punctis tribus impressis, striis 

 externis obsoletis ; femoribus rufo-piceis, tibiis tarsisque 

 ruf 



Carabus chalceus, Marsham, Ent. 460. 



Pogonus chalceus, Steph. Mand. 1. 107, et Manual, p. 31. 



P. halophilus, Germ. Ahrens, Faun. Eur. 10. 1. Dej. Spec. 3. 



13; Icon. 2. 249. pi. 104. 

 P. littoralis, Steph. Mand. 5. 376, et Manual, p. 31. 



Shining brassy, sometimes bluish or greenish brass. Head 

 smooth, with a deep oblong fovea on each side between the 

 antennae, the latter fuscous black with their apex paler. Thorax 

 subquadrate, the breadth being rather greater than the length, 

 sides rounded, but not so much as in the preceding species, nor 

 so much or so suddenly contracted behind, posterior angles very 

 nearly right angles, disk convex, dorsal line slender and inter- 

 sected in front by a triangular punctured impression, base 

 depressed, punctured, having a punctured fovea on each side, 

 and exterior to that a minute elevated line running into the 

 angle. Elytra oblong, sides very slightly rounded, convex, 

 punctate-striated, the strise much finer and the punctures 

 wanting behind the middle, and both entirely obsolete on the 

 sides, the third stria has a deeper impression before the middle 

 and another about the middle, and the second has a less distinct 

 one nearer the extremity; underside black, legs red, femora 

 sometimes pitchy red. Length 3 lines. 



P. littoralis, Steph., does not differ from the present species. 



Common in salt-marshes and estuaries, and on the banks of 

 tidal rivers. 



3. P. littoralis : viridi-seneus ; thorace latiore subquadrato, an- 

 tice posticeque subcoarctato, angulis posticis subrectis; 

 elytris oblongis, subparallelis, fortiter striato-punctatis, 

 punctis tribus impressis, striis externis obsoletis ; femoribus 

 rufo-piceis, tibiis tarsisque rufescentibus. 



Carabus littoralis, Dufts. Faun. 2. 183. 



Platysma littoralis, Sturm, D. F. 5. 67. 



Pogonus littoralis, Dej. Spec. 3. 11 ; Icon. 2. 280. pi. 104. 



P. aruginosus, Steph. Mand. 1. 107, et Manual, p. 31. 



