178 ADEPiiAGA. [HijtJropor7is. 



and Highlands, throughout the greater part of the country. Ireland, Killaruey, and 

 river Dodder. 



K. Davisii, Curt. Oblong oval, without pubescence, somewhat dull, 

 under side black, upper side testaceous, head with an oblique dark stripe 

 on each side meeting at vertex, thorax with more or less distinct dark 

 transverse markings on disc, separated by a testaceous longitudinal baud 

 in centre ; elytra witli seven or eight dark lines on each, confluent in 

 jjlaces, especially at margins ; apex of elytra acuminate, their surface 

 very finely reticulate with scattered larger punctures ; front and middle 

 tarsi considerably dilated in male, claws of front ones more elongate in 

 male than female. Long. 4^ lat. 2j mm. 



Always found in very clear waters ; Northumberland and Durham district ; Scot- 

 land, common in streams. Lowlands and Highlands, Forth, Dee, Moray, (Pohnont near 

 Glasgow in abundance (Power) ). 



K. halensis, F. Oval, rather broad, dull, with very thick and short 

 pubescence ; head testaceous ; thorax testaceous with two dark spots 

 divided by a central line, Avhich touch or almost touch the basal margin ; 

 elytra testaceous, with six lines and interspersed spots black ; metaster- 

 num black ; upper surface hardly visibly punctured, underside strongly 

 punctured ; male with the anterior and intermediate tarsi broader than 

 in female, claws of anterior tarsi longer ; abdomen black, middle of apex 

 ferruginous ; female with the abdomen ferruginous. Long. 4^, lat. 2| 

 mm. 



A fen species : first taken at Haughley, Suffolk ; Ranworth, Wicken, and Horning 

 fens ; Bungay ; Stowmarket. 



K. dorsalis, F. Oblong oval, somewhat depressed, plainly piibescent, 

 colour variable, usuall}^ black, with head, margins of thorax, and mark- 

 ings towards base and sides of elytra, and sometimes at apex, rufescent ; 

 thorax transverse, with a large depression on each side of base, the 

 depressions meeting more or less distinctly in centre, base narrower than 

 base of elytra ; antennae rather long and slender, fuscous with base red ; 

 underside reddish ; male, rather shiny, with anterior and intermediate 

 tarsi strongly dilated, plainly punctured ; female duller, more obsoletely 

 punctured. Long. 4|, lat. 2^ mm. 



Ponds, &c. ; not uncommon and widely distributed, but rather local; it occurs in 

 the Northumberland district, but is very doubtful as Scotch (there being only one 

 record, " Raehills, Rev. W. Little," Murray's Cat.) ; it has not yet been recorded from 

 Ireland, as far as I can discovei'. 



In some specimens the markings on the elytra are cj^uite obsolete ; the 

 peculiar broad depressed elytra, long legs, and comparatively narrow 

 thorax will, however, serve to distinguish them, for they cannot be con- 

 founded with any other species. 



H. lineatus, F. Oval, convex, with the elytra strongly acuminate 

 behind, closely but distinctly punctured, rather strongly pul^escent ; 

 head and thorax testaceous red, the latter with anterior and posterior 



