16 ADEPHAQA. [Nebna. 



than in the preceding species : occasionally varieties occur with the 

 elytra entirely rust red. L. 8|-9f mm. 



A very common mouiitaiu species, frequenting the banks of streams and rivulets 

 and damp places among stones. Derbyshire ; Lake District; Wales; Scotland, High- 

 lands ; Ireland (mountainous districts) ; the variety with red legs is said to be 

 common on ISnowdon. 



FEXiOFKIZiA, Dejean. 



This genus comprises very few species, which are mostly confined to 

 Northern Asia ; it forms the transition from the Nebriina to the Ela- 

 phrina, the structure of the mouth closely resembling that of Nehria, 

 while its general form connects it closely with Bletliisa. 



P. borealis, Payk. Brassy black or brassy ; palpi and antennro 

 black ; thorax short, sides strongly rounded and contracted to base, 

 posterior angles acute, anterior and posterior margins strongly punctured, 

 central furrow distinct ; elytra much broader than thorax, with sides 

 slightly rounded, striae shallow, often almost obsolete at sides, the third 

 interstice with four or five very large round impressions, and the fifth 

 with two to five, the number varying in different specimens or even on 

 different elytra of the same insect. Legs black, sometimes more or less 

 ferruginous. L. 8-11 mm. 



Under stones or running in the sun by the side of lakes, &c. ; not recorded from 

 England or Wales. Scotland, Orkney Islands. Ireland, rather widely distributed, and 

 common where it occurs ; Killaruey ; near Belfast ; Lough Neagh. I have just (Oct. 

 1885) received a large series from Lowry's Lough, near Armagh, from Rev. W. P. 

 Johnson ; the Irish examples are more brassy than the Scotch. 



ELAPHRINA. 



I. Side margins of elytra continued as far as scutellum ; thorax 



with lateral margins wide Blethisa, Bon. 



II. Side margins of elytra not continued at base; thorax with 



very narrow lateral margins Elaphrus, F. 



BIiETKISA, Bonclli. 



The genus Blethisa comprises about a dozen species confined to the 

 northern hemisphere. 



B. multipunctata, L. Brownish or greenish brassy ; thorax 

 broader than the head, a little broader than long, subquadrate, very 

 slightly narrowed towards base, posterior angles acute, base broad and 

 with a deep punctured fovea on each side, side margins very wide ; 

 elytra broad, rather parallel-sided, with greenish margins, stride rather 

 irregular, finely punctured, interstices convex, the third and fifth in- 

 terrupted with from three to five large shining impressions ; legs brassy 

 black. L. 11 mm. 



Local and rather rare, but widely distributed ; in marshy places or on the banks of 

 streams and rivers under stones, &c., or running in the sun. Cambridgeshire Fens; 



