Cdelamhun.'] adepiiaga. 169 



apex to alx'ut middlo, black, very lincly punctured, with lar^'er punctures 

 sparingly distributed, and sometimes arranged more or less in rows ; 

 underside black : the diUerence between the sexes is very slight. Long. 

 3f, lat. 2 mm. 



Ponds, &c.; local, hut widely distribtitpil throntrhont Eii<ijland, botli inland iind in 

 brat-kish ponds near tlie coast ; Scotland, rare, Lowlands, Forth, Solway, Clyde. 

 Ireland, near Belfast and Armagh. 



C. novemlineatus, Steph. Oval, rather elongate, Avithout pubes- 

 cence, testaceous, Avith a well-defined spot in centre of thorax (very 

 rarely continued on each side horizontally), and the suture and four 

 lines on each elytron black, underside of abdomen and breast black ; 

 thorax with a minute fovea in the centre ; elytra very thickly and finely 

 punctureil ; male shining, with the two anterior pairs of tarsi strongly 

 dilated ; female dimorphic, one form being like the male, the other very 

 dull (the latter is the nigroUneatua, Zctt, 2''<iraUelus, Aubt';. Long. 4, 

 lat. 2 mm. 



A northern species ; locally -.ibniidant in the Scotch lakes as far north as the 

 Moray district; Loch Leven and Loch Gelly, abundant (Dr. Power); Northumber- 

 land, Prestwich Carr (Bold) and Kothley Lakes (abundant, Power). It occurs 

 in lakes in Lapland. Stei)liens (III. Maud. ii. lD2j says that two specimens were 

 taken by Mr. Kudd at Weyhill (near Andover). 



C. parallelog-rammus, Ahr. Oblnng-ovate, witliout jaibescence, 

 testaceous, with two spots on head, a spot in the middle of thorax, and 

 the suture and several irregular lines on elytra parallel to it, black ; 

 thorax strongly punctured on anterior and posterior margins, disc almost 

 smooth, with a small fovea in the centre ; elytra thickly punctured ; 

 underside of head and thorax reddish yellow, breast and abdomen black; 

 male shining, with elytra rather strongly punctured, with the two 

 anterior pairs of tarsi dilated ; female dimorphic, one form shiny and 

 jjunctured like male, the other very dull and opaque, very finely and 

 obsoletely punctured (the latter is the 7iigrulineat.us, Kunze). Long. 

 4.1, lat. 2| mm. 



Ponds and ditches, both fresh and brackish, bat more commonly in the latter not 

 far from the sea. Widely distributed, althou<;h somewhat local, as far north as 

 Hartlepool and the XorthunihiTland district ; not recorded from Scotland or Ireland: 

 it ])rol)ably occurs in the latter country, but is not so likely to be found in Scotland, 

 as it is wanting throu^'hout Northern Europe. 



C. impressopunctatus, Schall. {jiirrpes, F.). Oblong oval, some- 

 wliat cdiivex, Udt pubtscrnt, ferruginctus testaceous, with the vertex of 

 bead on each side (and sometimes a spot near mouth), anterior and pos- 

 terior margins of thorax (the former very narrowly), and several indistinct 

 lines on elytra, parallel to suture, black ; thorax strongly ])unctured, 

 except on disc, where there is a small fovea ; male witli elytra very 

 strongly and coarsely punctured at base, more finely towards apex, with 

 the sutiiial stria and two others strongly marked by rows of punctures 

 set tliickly together; anterior and inlermediatc tarsi dilated; female 



