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 just received from Cape Sova (lat. 45 c 3(T, 
the extreme north of Tezo) a £ of rugipennis, measuring only 18 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 , Fair in., 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 1 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 1 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: — 
Cucujus coccinatus, sp. n. 
Elongatus , depressus, niger. Statura omnino C. bicoloris, elytris 
coccineis, punctulatis, lateribus §ubcarinatis. L.c., 6 — 7 lines. 
* Same latitude as Chefoo. 
