CARABID^E. POGONUS. 71 



Larger than chalceus and uniformly brassy green. Head wide 

 with an oblong smooth impression on each side, the space 

 between them on the crown being broader and smoother than in 

 the former species, the antennae fuscous black, the apical joints 

 a little stouter. Thorax subquadrate, more narrowed in front, 

 but broader and more dilated and rounded in the middle on the 

 sides and a little narrowed behind, the posterior angles not quite 

 rectangular, disk very much wrinkled, dorsal furrow slender and 

 intersected in front by a curved punctured or rugose impression, 

 base depressed, the entire space between the basal fovese more 

 thickly and strongly punctured, the fovese themselves not quite 

 so deep but broader and very much punctured, having also ex- 

 terior to them an elevated line running into the angle as in the 

 foregoing species. Elytra much broader, subparallel, strongly 

 striate-punctate in front, the striae more slender and the punctures 

 absent behind the middle and both altogether obsolete on the 

 sides as in the allied species, having also three deeper impressions 

 similarly placed; underside black, legs rusty red, the femora 

 darkest. Length 3J lines. 



This insect is very closely allied to the preceding, but is larger 

 and longer, rather more convex, and usually entirely brassy 

 green above. The thorax is distinctly narrower in front and 

 behind and appears therefore more rounded at the sides ; the 

 elytra are wider, more deeply striated, and the striae more strongly 

 punctured in front. Dejean points out other particulars by 

 which it is to be distinguished, but little reliance is to be placed 

 upon them ; its general habit or appearance, as above indicated, 

 will amply serve to recognize it after a very little practice. 



It may be taken in great profusion in Lymington Salterns 

 under clods of clay, unassociated with chalceus, though the latter 

 is found also in other parts of the same Salterns ; on the Lin- 

 colnshire coast I have taken them in company; but at Deal, 

 Whitstable, Gravesend, and in the Isle of Wight, &c., chalceus is 

 found without any examples of littoralis associated with it. P. 

 aruginosus, Steph., is an immature individual of this species. 



Genus 26. PATROBUS, Dejean. 



Mentum dente medio bifido. Ligula cornea, apice rotundata ; para- 

 glossis apice rotundatis. Palpi articulo ultimo subcylindrico, 

 apice truncato. Mandibulse subarcuata, acutiusculce. Labrum 

 transversum, breve, truncatum. Tarsi antici maris articulis 

 duobus dilatatis, subobcordatis, subtus biseriatim pectinato- 

 setosis. 



