354- All. G. Lewis on new Japanese Coleoptera. 



LVIIl. — On new Japanese Coleoptera (iSilpliidaj)*. 

 By G. Lewis, F.L.S. 



In 1881 T had about thirty beetles given to me by Mr. Snow, 

 who had, in an interval of seal-shooting, gathered them a 

 short time before on the sea-beaeh of Ketoi, one of the 

 smaller islands of the Kurile group. There were four or 

 five specimens of Nchria Snoici, Bates, a few examples of 

 Geotrnpes hrvistriatus, Motsch., some CurcuHonida?, and the 

 rest of the specimens belong to the genus Lyrosovia. The 

 last are now described here, together with two species in the 

 allied genera Pteroloma and Felates taken by myself on the 

 main island of Japan. The fauna of the Kurile Islands is 

 doubtless a veiy limited one ; but the discovery of four 

 species of Lyrosoma amongst so few specimens shows it to 

 be one of a very peculiar character. 



List of Species. 



Lvrosoma tripartitiiiu. Lyrosoma oTipenne. 

 — — Snowi. Pteroloma iliscicolle. 

 suturale. Pelates striatipennis. 



Lyrosoma tnpartitnmy sp. n. 



Eufo-bnumeum. subopacum ; antennis pedibusque concoloribus ; 



capite inter oculos carinato. 

 L. 6|-7 mill. 



Eeddish brown, elytra somewhat darker ; the head, area 

 before the eyes and the epistoma are flat and on the same 

 plane, posterior limit of this area semicircular in outline ; 

 between the epistoma and the head is a distinct suture, which 

 is joined to a longitudinal carina between the eyes, thus 

 dividing the upper surface of the iiead into three parts, 

 surface of head somewhat opaque, owing to a very fine 

 sculpture ; the thorax widest before the middle, and from the 

 middle narrowed to the hind angles, angles a little obtuse, 

 behind the neck is a i-ather wide median impression, surface 

 niicrosco])ically sculptured, uneven, with a few irregular and 

 ill-defined punctures ; the scutellum triangular, very minutely 

 and transversely rugose ; the elytra margined laterally, 

 marf'-in and first stria leave a rather wide interstice from 



o 



* For the first part of the " Silphidse of Japan " see Ann. & Mag. 

 Nat. Hist. 1887, xx. p. 338. 



