Coleoptera of Japan. 65 



it was, however, returned by M. Eoelofs.as an undeseribed • 

 species : his remarks, I. c, as to the sexual distinctions - 

 require correction. The male is rarely so large as the 

 female, and has a much narrower head, the distance- 

 between the eyes being much less than it is in the other 

 sex ; the rostrum is more slender, and not at all dilated 

 at the tip, the mandibles being feeble, and the teeth on 

 their outer edge inconspicuous. These characters bring 

 the species very near to our R. ophthalmicus, but hrevi- 

 rostris has the serial sculpture on the elytra coarser, the 

 setosity shorter, and the antennae more slender ; so that 

 I think it is a distinct species. 



Rhynchites assimilis. 



Rhynchites assimilis, Eoelofs, Ann. Soc. Ent. Belg., 

 xvii., p. 146. 



This is nearer to R. alliaricB than to any other of our 

 European species, but the setosity is shorter and the 

 sculpture finer : there are several intercalated punctures 

 at the base of the first interstice. The distinctions of 

 the sexes are slight. 



Rhynchites cupreus. 



Curculio cupreus, L., Syst. Nat., ed. xii., i., pt. 2, 

 p. 608. 



Sapporo ; one specimen. This insect has been re- 

 corded from Siberia as well as Europe : the identity with 

 the European species is not quite certain on this single 

 example, the colour being more purple. 



Rhynchites dyhofskyi ? . 



? Rhynchites dyhofskyi, Faust, Deutsche Ent. Z., 1877, 

 p. 289. 



Cyanens, elytris violaceis, parce breviterque pubescens; rostro 

 mediocri ; prothorace parvo, subcylindrico, crebrius punctate ; 

 elytris seriatim fortiter punctatis, interstitiis subconvexis, fortiter 

 punctatis. Long, cum rostro, 6:^ mm. 



Antennae rather slender ; rostrum about as long as the head and 

 the thorax, the latter only about half as broad as the elytra, the 

 punctures rather small, but deep and numerous, the interstices 



TBANS. ENT. SOC. LOND. 1889. — PART I. (MARCH.) F 



