22 ADBPHAGA. [^Dyscliirius. 



Neagli, Ireland. I can, however, find no trace of an authentic British specimen, and 

 for the present at all events it ought not to be admitted to a place in our lists. 



D. impunctipennis, Daws, (inermis, Curt.). Head and thorax 

 as a rule obscure black or pitchy, elytra pitchy, often seneous, or the 

 whole insect is of a dark bronze colour, head with an oblong depression 

 behind the eyes, palpi and antennae ferruginous, paler at base ; thorax 

 rather long, somewhat narrowed in front, sides not strongly rounded, 

 disc with central furrow ; elytra less ovate and more parallel-sided than 

 in D. thoracicus, deeply striated, the striae deepest . at the base next the 

 suture, apparently quite impunctate, except under a strong lens which 

 renders visible some fine punctures irregularly scattered, third inter- 

 stice with two, occasionally with three impressions ; anterior tibise fur- 

 nished externally with two very obsolete almost invisible teeth very 

 different from the sharp and distinct external teeth of D. thoracicus. 



Sandy places on or near the coast. Weymouth; Deal; Lancashire coast ; sands 

 bordering the Bristol Channel. Scotland, very local, Moray, Solvvay. 



D. politus, Dej. ^neous or greenish bronze, female duller, often 

 black or pitchy ; mouth parts and antennae ferruginous, base of latter 

 lighter; thorax oblong ovate, longer than broad, with sides rather 

 parallel, not strongly rounded, central furrow rather fine ; elytra hardly 

 broader than thorax, broad and rather elevated at the shoulders, elon- 

 gate, sides not quite parallel but gradually decreasing in width toward 

 apex, with plain punctured striae, which are continued to the apex, or 

 unite and terminate in pairs just before it, third interstice with two or 

 three impressions ; the anterior tibiae are furnished externally with two 

 obsolete denticulations, wdiich are often quite wanting. L. 4 mm. 



Sandy and clayey places, on the banks of ditches, &c. ; occasionally found in sand- 

 pits ; inland, and maritime. Sheppy in company with Bledius spectatilis and tri- 

 cornis ; Sheerness ; Deal ; Shiiley ; lied Hill ; Charlton; Brentford; West Wickham. 

 Scotland, very local, at the mouth of the Nith below Dumfries, scarce. Ireland, 

 near Belfast. Dawson mentions Lowestoft and other places on the Suffolk, Norfolk, 

 and Lincolnshire coasts, and also Bridlington, Yorkshire ; at the latter place I have 

 taken very sparingly a small Dyschirius which I used to consider D. angustatus, but 

 which appears rather to be a small form of D.politus; the external teeth of the 

 anterior tibije are occasionally rather plain in these specimens, but are often quite 

 absent ; they occur in company with a Bledius which appears to be crassicollis, but 

 in some points differs from that insect, although it is plainly not erraticus, the only 

 other species belonging to this section. 



D. nitidus, Dej. Shining brassy ; base of antennae and mouth 

 parts ferruginous ; head with a deep rugose impression on each side 

 between eyes, united in front by a transverse elevated line ; thorax 

 rather longer than broad, broadest behind the middle, disc very convex 

 with a deep central furrow ; elytra Avider than the thorax, elongate, with 

 shoulders well marked, sides subparallel, strongly striated, especially at 

 the base and near suture, the striae plainly punctured except at apex, 

 marginal stria abbreviated at shoulder, third interstice with two or three 



