198 [February, 



I have now explored North Japan as well as the time at my dis- 

 posal permits, and J hope next year to give attention again to the 

 south, beginning in Satsuma and then on to Biwa Lake. There seems 

 to me to be good evidence that the large island of Nipon was formerly 

 divided into two parts by the sea running through where the lake now 

 is, and I believe the fauna of the whole of Japan can be apportioned 

 into that of the north and that of the south ; the line to be drawn 

 from coast to coast across the Biwa Lake, rather than at any other 

 place where the incursions of the sea at this time seem to indicate a more 

 natural boundary. I have ju3t received from Cape Sova (lat. 45° 30', 

 the extreme north of Tezo) a $ of rugipennis, measuring ouly 13 lines, 

 with copper-coloured thorax instead of the ordinary green, so I am not 

 hopeful of getting a second species in Tezo. 



Yokohama : 8th November, 1880. 



NOTES ON CUCUJID.E IN JAPAN, WITH DIAGNOSIS OF A NEW 



SPECIES. 



BY GEORGE LEWIS. 



Cucujus Mniszechi, Fairm., is not solely indigenous to Japan, for 

 M. Ancey of Marseilles, has a specimen in his collection from Chefoo, 

 in China. The species was first sent to Europe by two Japanese in a 

 small collection forwarded for the Paris Exhibition of 1877, and the 

 specimens are now in the French National collection and in Count 

 Mniszech's. It is a beautiful blue species and the largest hitherto 

 described, for I find that C. imperialis (Ent. Mo. Mag., vol. xv, p. 234) 

 only equals small specimens of it. I took a fine series last June, and 

 the first specimen measured one inch and one line, giving me a most 

 uncomfortable nip with its powerful mandibles when I interfered 

 with its liberty. It breeds in the large oaks which grow freely in the 

 elevated forests of central Nipon,* the imago passing the winter 

 under the bark. Two days since I found a lively pair. 



There is a smaller species here, more common, living under bark 

 of various deciduous trees, such as beech and elm, occurring in early 

 summer and again in autumn, and ranging from Yokohama North to 

 South Tezo. I briefly characterize it as: — 



Ctjcujus coccinatus, sp. n. 

 JSIongatus, depressus, niger. Statura omnino C. bico!o?'is, elytris 

 coccineis, punctulatis, lateribus subcarinatis. L.c, 6 — 7 lines. 



* Same latitude as Chefoo. 



