86 SEHIUCORNIA. [Cnj 



2. Upper surface bronsc, legs red ; size larger; 



first joint of antenna 1 longer thiin third joint C. BIPABIUS, F. 

 ii. Thorax longer, strongly rugose ; elytrn with 



yellow markings C. BABULICOLA, /;.-//. 



II. Thorax with the carinie of the ]m-trrior tingles 



reaching beyond middle ; size smaller, 

 i. Prosteruura without furrow. 



1. Elytra with several variable yellow spots at 



base and towards apex C. FDLCHKLLUS, L. 



2. Elytra with two well-marked large yellow 

 spots on each, one at base and the other before 



apex C. QCAUBIPU8TULATC8, F. 



ii. Prostcrnum with lateral furrow in front ; lytra 

 immaculate or with two small yellow spots on 



each, one at base and the other before apex . . C. DRKMBSTOIDEH, Herbst. 



(v. q\uidr ig attains, Lap.) 



C. maritimus, Curt. (Seofus, Canil.). Elongate and rather narrow, 

 black, with a very slight, almost imperceptible, metallic reflection, 

 clothed with very tine greyish pubescence; head very closely punctured, 

 antennae long and slender, first joint shorter than third, second joint 

 very short, third and fourth joints nearly equal ; thorax somewhat longer 

 than broad, very closely and finely punctured with more or less distinct 

 traces of a smooth central line in middle; elytra with deep striae, 

 interstices very closely punctured ; prosternal process only covering base 

 of mouth parts ; legs black with tarsi pitchy. L. 4 4| mm. 



Ou the banks of rivers and streams; very local; Llanberis ; Bettws-y-coed ; 

 Heysham and Lancaster district; Cumberland; Northumberland and Durham 

 district ; Scotland, Solway, Tay and Moray, and probably Clyde and Dee districts. 



C. riparius, F. Much larger and broader than any of our other 

 species, ovate, convex, of a dark bronze colour, very sparingly clothed 

 with yellowish pubescence; head convex, coarsely punctured, with ;i 

 furrow or depression on vertex, antennaB pitchy with base lighter, first 

 joint large, second third nd fourth of about equal length, the rest 

 shorter and broader; thorax very convex in middle, depressed strongly 

 at base, broade.st just behind middle, diffusely and finely punctured on 

 disc, more thickly at sides ; scutellum large, rounded ; elytra about 

 twice as long as together broad, broadest in middle, with distinct 

 impunctate striae, interstices flat, very finely and diffusely punctured; 

 under-side black; legs reddish-yellow with pitchy femora. L. 5-6 mm. 



Ou the banks of streams, &c. ; under stones and pieces of wood, also in flood 

 ! t'n-i- ; common and generally distributed from the Midlands to the extreme north 

 of Scotland ; not uncommon in the London district, but apparently rare in the south 

 of England; Ireland, near Belfast anil Dublin; co. Cork; YVestport, co. Mayo; 

 Teelin Bay, Donegal, &c. 



C. sabulicola, Boh. (Negastriw fabuUcufa, Thorns.). Elongate, 

 rather narrow, black, somewhat dull, elytra with irregular patches at 

 base and before apex, and a round spot on each behind middle yellow; 



