222 
Mr. H. W. Bates on the 
there was a distinct affinity between the Flora of Japan 
and tliat of the Atlantic States of North America, i. e., 
genera are found in these two regions which do not exist 
elsewhere. I have naturally been curious to ascertain 
whether the Geodepliagous Colcoptez-a showed any trace of 
this curious connection, and am able to say that there is 
an unmistakable trace. It is in the well-marked genus 
Lachnocrepis, allied to Oijdes, of which I here describe a 
species, and which is at present known from no other part 
of the world than the South-Eastern States of North 
America and Japan. There is no similar connection 
between Japan and the Western side of N. America, or 
the Western side of Europe. There are traces of simi- 
larity too in the genus Pristodacti/la, allied species being 
found in Japan and in Eastern North America. I am 
inclined to attribute this singular relationship of Faunas by 
the migration of Northern types from their oNliocene homes 
in the arctic circle on the advent of the glacial epoch. 
The species would migrate along different meridians 
towards the South, and such as were adapted to the ex- 
treme climates of the Eastern sides of both the great con- 
tinents would finally settle there, or at least that remnant 
of them that escaped extinction. 
List of Species. 
Family CICINDELIDyE. 
Cicindcla Chinensis, DcGccr. 
Jaj)onica, Guer. 
Jiipanensis, Chaud. 
Lcwisii, n. sp. 
liiitcscripta, JMotsch. 
Amurensis, Moraw. 
speculifcra, Chcvr. 
gracilis, I'allas. 
Family CARABIDyE. 
Subfam. OMOPiiRONiNiE. 
Omophron aitinalis, Moraw. 
Subfam. CARABlXiE. 
Cjxbrus convcxus, IMoraw. 
Damastcr blajitoules, Kollar. 
I>ewisii, Kye. 
Fortunci, Adams, 
jiandurus, n. s. 
riijxipcnnis, ]\Iotsch. 
Carahtis Dellaauii, Chaud. 
Yaconiiiiis, ji. sj). 
iiisulitola, Chaud. 
Maiyasauus, u. sp. 
Carabus Albrechti, Jloraw. 
pniccrulus, Cliaud. 
grauulatus, L. 
tulicrculatus, Fisch. 
Calosoma JMaximowiczi, iloraw. 
mikado, n. sp. 
Ncbria livida, L. 
macrogona, n. sp. 
]iulclierrima, n. sp. 
Chineusis, Bates. 
Subfam. OziEXINJE. 
Eustra plagiata, Schmidt-Goebel. 
Subfam. ScARlTIX.'E. 
Scarites atcrriraus, IMoraw. 
jiacificus, n. sp. 
Clivina lata, Putz. 
humilis, Moraw. 
Niponensis, n. sp. 
Dyscbirius chcloscelis, n. sp. 
Stcno, n. sp. 
ordinatus, n. sp. 
orientalis, I'utz. 
iliogocnsis, u. sp. 
