GeodejyJiagous Coleoptera of Japan. 229 
Fam. CARABIDiE. 
Division I. Epimcra mesotltoracica coxas attingcntia. 
Subfam. OMOPIIRONINiE. 
OmopUron (cqualis, Morawitz, Boitrag ziir Kuferfliuna 
tier Ins. Jesso, p. 6. 
ITiogo ; in a sandy river bed. An examination of five 
specimens taken by Mr. Lewis shows tliat tlie characters 
rehed on by Morawitz to distinguish this species from the 
European O. limhatus are not constant. Thus the four- 
teenth and fifteenth elytral stria? are sometimes confluent 
long before the apex, as is generally seen in O. limhatus, 
and the twelfth stria is abbreviated only in one example. 
I find, however, O. limhatus varies in these points. The 
only difterences between the two forms that I observe 
are size ( O. aqualis being 3 J- lines long) and the dis- 
tinctly straighter lateral margins of the thorax in O. 
CBqualis, with much more produced and less deflexed 
anterior angles. 
Subfam. CARABiNiE. 
Cyclirus convexus, Moraw. Beitr. z. Kaferf. Ins. Jcsso, 
p. 7, t. 1, f. 2. 
Hakodadi. Mr. Lewis did not obtain this species, 
M'hicli is described by Morawitz as very distinct in its very 
convex elytra, with lateral keel visible from above only at 
the shoulders. Its colour is brassy black, with cordate 
thorax and strongly granulated, triseriatc - tuberculate 
elytra ; 15^ millimetres long. 
Damaster hlapto'ides, Kollar, Ann. Wicn. Mus. i. 1830, 
p. 334, t. 31, f. 1 ; Lacordaire, Genera des Col. 
Atlas, t. 2, f. 2. 
The famous Damaster hlapto'ides was met with by Mr. 
Lewis only in "deep peaty woods, in the granitic district," 
near Nagasaki. All specimens oi Damaster found else- 
where in Japan differ more or less from this, which is the 
largest form. The size of the specimens brought home 
varies fr-om 1 in. 8 lines to 2 in. 5 lines (including the 
elytral mucro). Besides the larger average size, this 
species is distinguished from the allied forms by the much 
longer elytral mucro, which in some males measures a 
quarter of an inch in length. 
TRANS. ENT. SOC. 1873. — PART IT. (MAY.) R 
