1913.] 



75 



paler at the apex) and the concolourous, strongly alutaceous apex of 

 the elytra. It is usually regarded as rare in this country, but at 

 Colesborne it is common in woods and hedge-bottoms. 



1. N. aquaticus S . last joint of labial palpus. 



2. N. ptisillus, (? , „ „ „ „ „ 



3. N. palustris, $ , „ „ „ „ „ 



4. „ „ $ , middle lobe of sedeagus. 



5. N. hypocrita S , „ ,, „ „ 



6. „ „ c? . last joint of labial palpvis. 



Colesborne, Cheltenham : 

 December 31sf, 1912. 



DESCEIPTION OF A NEW SPECIES OF HALIPLUS. 

 BY D. SHARP, M.A., F.R.S. 



Haliplus beownei, sp. nov. 



Breviter ovalis, testaceus, elytris lineis nigris tennibus ante mediiun 

 postque medium subinterruptis. Long. 2f mm. 



Mas, Tarsis intermediis bene dilatatis, articulo basali ad apicem abrupte 



crassiore. 



Fem., Minus nitida, tarsis haud dilatatis. 



This species is extremely similar in coloration to H. fiuviatilis, 

 but it is of shorter iovva—fluviatilis being fully 3 mm. long — and is 

 readily distinguished by this character and by the peculiar middle 

 feet of the male. 



The latter character brings the species nearer to H. nomax, 

 Browne ; in which, however, the form is narrower, the elytra con- 

 sequently straighter at the sides, and the black lines are entire and 

 very strongly marked, and the profile of the male middle tarsus is a 

 little broader, and the bending of the apical portion of its basal joint 

 slightly less abrupt. In September, 1868, I met with this species at 

 Stony Stratford in the River Ouse. It was found in company with 

 H. fluviatilis, both species being plentiful. The two have since then 

 been mixed in my collection. 



