Jli/'Iroporn.-i.'] adephaga. 179 



mar^'ins usually more or less narrowl_y dark ; elytra fuscous with the 

 exterior iiiar^nn and several indistinct lines testaceous red ; these are 

 often obsolete, and the whole surface except margins appears fuscous ; 

 underside red, shiny ; male with the anterior tibia3 narrowed internally 

 towards base, anterior and intermediate tarsi plainly dilated. Long. 3, 

 lat. 1| mm. 



Ponds and ditclios inland and on the coast ; common and widely distributed throufjh. 

 nut England and Wales, :i]thoii<i:h somewhat local iu places ; Scotland, local, Lowlands, 

 Twufd, Tav, Solway ; Ireland, near Belfast. 



H. Scalesianus, Steph. Oblong oval, very sparingly pubescent, 

 somewhat shiny ; head and thorax reddisli, the latter impunctate on 

 disc, antennai long ; elytra rather dark ferruginous, distinctly and rather 

 strongly punctured, strongly narrowed towards apex ; abdomen and 

 lireast blackish ; anterior tarsi with the third joint elongate ; male with 

 the anterior and intermediate tarsi a little broader than in female, the 

 claws of the former thick and elongate. Long. 2, lat. 1 mm. 



Very local ; oritriualiy taken by IMr. Scales in Norfolk, but the locality has been lost ; 

 it appears to be only found uo.v in Askham Bo<? near York, where it is not uncommon 

 at certain seasons of the year, although never plentiful. 



H. negrlectus, Schautn. Oblong, rather narrow, very scantily 

 puljcscent ; head red, thorax pitch-black, elytra reddish brown ; thorax 

 narrower than elytra, sparingly punctured on disc ; elytra rather strongly 

 and diffusely punctured, somewhat parallel-sided, posterior third gradually 

 narrowed to apex ; underside black ; third joint of anterior tarsi elon- 

 gate ; anterior and intermediate tarsi broader in male. Long. 2^, lat. 1 \ 

 mm. 



Rare; first taken in Britain by Dr. Power at Lee Pit; it has also occurred ou 

 Cannock Chase aud iu Askham Bog, York. 



This is one of our smallest unspotted species ; it most closely resem- 

 bles //. tristis in form, colour, and sculpture, but is much smaller, more 

 depressed, and rather less parallel, and the sides of the thorax are more 

 curved ; it is also allied to //. umhroisus, from which it dilfers by its 

 somewhat smaller size, more elongate and parallel form, entirely ferru- 

 ginous legs and head, and less pubescent, more finely punctured elytra. 



H. tristis, Payk. Oblong, feebly eonvex, somewhat depressed on 

 disc of elytra, very sparingly pubescent, not very shining; head reddish 

 in front ; thorax black with sides almost straight, ditfusely punctvired or 

 almost impunctate on disc ; elytra rather parallel-sided, reddish brown, 

 rather strongly punctured ; undersidi; black ; the sexes are scarcely dis- 

 tinguishable. Long. 3, lat. H mm. 



Very local ; seems chiflly but not entirely to aflfect peaty soils on moors and in 

 mountainous districts : Swansea ; Hannnuth ; Siiow<ion district ; Teesdale ; Reptoa 

 (\V. Garneys) ; Askham Bog; abundant ou the Northumberland Moois iu mossy 

 holes; Scotland, commou in the Tay, Dec, and Solway districts. Ireland, Armagh. 



Tliis species is at once distinguished from //. nmhrosus by its larger 

 si/(!, much straighter sides of elytra, scantier pubescence, and more 



N 2 



