168 ADEPHAGA. [Conlambus. 



finely punctured with scattered large punctures, reddish testaceous 

 with irregular and much interrupted longitudinal black bands, which are 

 very variable in extent ; there appear to be no external sexual distinc- 

 tions. L. 3|, lat. 2 mm. 



Ponds and ditches ; local but not uncommon in the centre and southern parts of 

 Enghiud from Yorkshire downwards; becomes rarer further north (Mr. Bold knew of 

 only two or three local specimens from the Northumberland district), and is not 

 recorded from Scotland. Ireland, near Belfast and Dublin. 



C quinquelineatus, Zett. Very closely resembles the preceding 

 in size, shape and general appearance, but may at once be distinguished 

 by the larger punctures on the elytra being much more numerous and 

 closer to one another, and also by having the longitudinal dark markings 

 on the elytra narrower, and more regular, as a rule, but in this point it 

 somewhat varies ; the prosternal process is depressed in front instead of 

 being elevated as in the preceding species. Long. 3, lat. 2 mm. 



Rare ; the original specimens taken in this country by Mr. Waterhouse were 

 believed to have occumd near London, and Dr. Power has a specimen marked 

 " B.attersea Fields; " Repton rare (Mr. Garneys) ; Northumberland district, " Prest- 

 wich Carr and Gosforth Lake, September;" Scotland, very rare. Lowlands, Tweed 

 and Solway ; Ireland, Killarney, and near Armagh. 



C. inaequalis, F. Short, convex, rather broad, without pubescence ; 

 head and thoiax ferruginous, anterior and posterior margins of the latter 

 dark ; elytra black with the margins and some irregular markings 

 testaceous or reddish testaceous ; elytra thickly and strongly punctured, 

 without smaller punctures interspersed ; the colour is variable, but the 

 sutural portion is always black and the margins light, and, as a rule, the 

 dark portion is not spotted. Long. 3, lat. 2 inm. 



Ponds and ditches inland and near the coast ; common and widely distributed 

 throughout the kingdom as far north as the Moray district of Scotland, and 

 probably occurs in the extreme north, as it is abundant in Northern Europe. 



C. decoratus, Gyll. Short, oval, convex, without pubescence, 

 shining, smaller and with apex of elytra more acuminate than in the 

 preceding species ; head red, thorax brownish red, thickly punctured in 

 front and behind, disc mvich smoother ; elytra dark, with side margins 

 and two irregular spots on each towards base and apex (both reaching 

 side margins), orange-testaceous ; elytra moderately strongly and not 

 very closely punctured with smaller punctures interspersed. Long. 2^, 

 lat. 1| mm. 



A very local species both in England and on the Continent ; ponds and ditches ; 

 London district, Lee Pit, Netting Hill (formerly), Woking, Cowley ; very abundant 

 at Askbam Bog near York ; Hamlet Clark (Zoologist, clvi. 4857) gives Norfolk and 

 Northamptonshire as localities. 



C. confluens, F. Oval, somewhat ellij^tic, rather depressed on disc, 

 but convex on the under side, not pubescent; head testaceous, behind 

 and near the eyes dark brown ; thorax testaceous ; elytra pale testaceous 

 with the suture and three or four abbreviated lines reachingr from near 



