448 Mr. David Sharp 07i the 



of very fine alutaceous sculpture, rendering the surface 

 opaque, except that at the suture and at the apex it is 

 rather hroadly, at the outer margin narrowlj^ shining. 

 The individuals from Yokohama have the epipleuras 

 quite dark, while the specimens formerly brought from 

 Nagasaki possess the faint rufescent tinge above men- 

 tioned, but clearly all are one species. 



Gyrinus curtus. 



Gyrinus curtus, Motsch., Bull. Mosc, 1866, i., p. 165 ; 

 Sharp, Trans. Ent. Soc. Lond., 1874, p. 417 ; 

 nee Eegt., Ann. Soc. Fr., 1882, p. 168. 



This species belongs to the group with red epipleura3, 

 and I think Motschulsky's name was really intended for 

 it. The sexual sculpture of the female, so apparent in 

 G-japonicus, is in G. curtus much more indistinct. 



Nagasaki and Sapporo. 



Gyrinus gestroi. 



Gyrinus gestroi, Eegt., Ann. Soc. Fr., 1883, p. 165. 



Mr. Lewis captured a series of this species near 

 Yokohama at the commencement of winter, and also 

 met with it near Sendai, and at the Ogura Lake in 

 July. 



Orectochilus regimbarti. 



Elongato-ovalis, fusco-niger, supra uudique subtiliter punctato- 

 tomentosus, infra epipleuris pediLus abdoniincque late lerrugineis ; 

 labro lato rotundato, mediocritcr elongato. Long. 8i — 9 roni., lat. 

 4 mm. 



Mas, elytris sutura parum elevata, ad apicem fere recte truncatis. 



Fern., elytris sutura valde elevata, apice iu medio angulariter 

 producto. 



This species is very distinct from any other with which 

 I am acquainted. The labrum is just about twice as 

 broad as it is long ; the thoracic punctuation is extremely 

 indistinct, and that on the elytra quite fine, and more 

 scanty in the male than in the female. The male 

 anterior tarsi are only moderately dilated. 



I have named this distinct species in honour of Dr. 

 Maurice Eegimbart ; by the assistance of his carefully 



