180 ADErnAGA. \JJ ijd miiarm- 



difiFuse punctuation ; compared with H. morio, Dej. {airiceps. Crotch), 

 it is smaller, flatter and more oblong with the sides of the thorax less 

 narrowed in front : apart from this, however, its reddish head and 

 brownish colour will at once distinguish it. 



K. umbrosus, Gyll. Oval, rather convex, parallel-sided, rather 

 dull ; head reddish in front, thorax black, elytra brownish ; thorax 

 plainly but diifusely punctured on disc ; elytra closely but very dis- 

 tinctly punctured with the sides somewhat rounded ; tarsi dilated in both 

 sexes ; the sexes are hard to distinguish : there appear to be two forms 

 of the species, one being somewhat more elongate and more brightly 

 coloured than the other, but, according to Dr. Sharp, they are not speci- 

 fically different, and both of them are alike in having the aiucal ventral 

 segment more distinctly punctured than is the case in the allied species. 

 Long. 2|, lat. 1^ mm. 



Ponds, &c., local ; rare near London, Woking, &c. ; Walthamstow ; Hornins: Fen, 

 Woodbastwick, and other Norfolk localities; Ask ham Bog ; Northumberland district, 

 Gosforth, somewhat rare; Scotland, local. Forth, Tay, Clyde, Moray. 



The distinctions between this species and the two preceding are men- 

 tioned above : it somewhat resembles in shape H. ohscurus^ but is smaller, 

 differently coloured, much more strongly pubescent, and more closely 

 punctured ; the angle made by the thorax and elytra viewed sideways is 

 very evident in this species, whereas in H. ohsciLrus the outline is 

 continuous. 



K. ang"ustatus, Sturm. Oblong oval, elongate, plainly pubescent, 

 black underneath, upper side ferruginous with head, and often thorax, 

 red ; antennte long and slender : thorax sparingly punctured on disc, rather 

 strongly at base, base with depressions on each side more or less evident ; 

 elytra at base slightly broader than base of thorax, with sides somewhat 

 rounded, closely and distinctly punctured ; third joint of the anterior 

 tarsi elongate ; male with the anterior tarsi strongly dilated, and the claws 

 thickened, intermediate tibiae sinuate internally. Long. 3, lat. 1 1 mm. 



Pond':, &c. ; not uncommon and widely distributed throughout England and Wales. 

 Scotland, scarce, Lowlands, but widely distributed as far north as the Moray district. 



In size and colour this species somewhat resembles H. ohsairus:, but 

 may at once be distinguished by its more oblong shape, longer antennae, 

 and the very evident angle formed by the sides of thorax and elytra, as 

 well as by the more or less visible depressions at the base of thorax, 

 which are wanting in H. ohscurus, in which insect the base is much less 

 strongly punctured. 



K. G-yllenhalii, Schiodte (jnreus, Steph.). Oblong oval, rather 

 convex, sliining, almost without pubescence, very strongly punctured, 

 colour dark pitchy castaneous, often lighter towards margins of elytra, 

 legs red ; thorax plainly punctured on disc, but much less strongly than 

 on margins ; sides of tliorax and elytra viev/ed sideways forming a strong 



