458 Mr. David Sharp on the 



Cercyon setulosus. 

 Oblongo-ovalis, snbdepressus, niger, antennis palpisque testaceis, 

 pedibus sordide testaceis ; prothorace ad latera vix subsinuato, 

 angulis posterioribus obtusis haud rotundatis, parce obsoleteque 

 piinctato ; elytris subopacis, striatis, striis fere impunctatis, postice 

 paulo profimdioribus, interstitiis haud punctatis, obscure setosulis. 

 Long. 2 mm. 



Allied to C. algarum and C. aptus by the subopaque, 

 less punctate, upper surface, and by the interstices of 

 the elj'tra being but little convex behind ; from C. aptus 

 it is readily distinguished by the more slender legs, 

 which are armed with finer spines, and by the hind tibiae 

 being undilated at the extremity. The fine setulosity on 

 the interstices of the elytra, though obscure, is diagnostic 

 of this species. 



Half a dozen specimens have been found, but the 

 locality has not been preserved ; no doubt the insect is 

 of maritime habits. 



Cercyon sharpi. 



Cercyon Sharpi, Harold, Deutsche Ent. Zeit., 1878, 

 p. 68. 



I have not been able to identify Von Harold's descrip- 

 tion with any insect known to me. The species is a 

 little doubtful, as Harold misunderstood my description 

 of C. dux in certain points. I do not think, however, 

 that his description can apply to the species just named. 



Found at Tokio by Hilgendorf. 



Cercyon aqnaticus. 



Cercyon aquaticmn, Muls., Palp., p. 174. 



This European species was found in seven examples 

 at Otaru. 



Cercyon ovillum. 



Cercyon ovillum, Motsch., Schrenck's Eeisen, p. 129. 



Two exam]iles of this common Amur-land species were 

 met with at Sapporo. 



