GeodephcKjous Coleoptera of Japan. 233 
in Dellaanii and Yaconinus, and liavc not the relative 
greater Icngtli -which is seen in insulicola ; the 4th chain- 
stria is reduced to a distinct row of granules, but the ex- 
terior marginal granulation takes the form of definite 
longitudinal lines ; the dorsal stria3 are continuous to the 
apex. 
I have examined more than a dozen examples, Avithout 
finding much variation. 
C. Albreckti, Morawitz, Bull. Acad. St. Petersb. v. (1863), 
321, 1 ; id. Beitr. Kaferfauua Ins. Jesso, p. 10, t. 1, f. -i 
(1863). 
" Supra subcupreus, vcrtice Itevi, prothoracis lateribus 
rotundato, ante angulos posticos sinuato, basi arcuatim 
emarginato ; elytris profuudc et regulariter striatis, inter- 
stitiis angustis, convexis, 4'°, 8''° et 12""° catenatis. 22 — 
22^ millim." MoraAv, 1. c. 
In most of the examples of this species, two characters 
are observable which distinguish it from its allies; 1, the 
thorax broadest in the middle ; and 2, the impunctate stria) 
of the elytra. Examples however occur in which the 
thorax is broadest before the middle, and the striae distinctly 
crenated ; thus a satisfactory diagnosis is not possible. It 
varies also in colour, sometimes being " subcupreus," but 
generally blueish-black, like C. DeHaanii, some examples 
being brassy-cupreous, as bright as C. Maiyasanus ; but 
I have seen no specimen coloured like C. insulicola. The 
sculpture of the elytra in the punctured examples differs 
from that of C. Maiyasanus only in the punctures not 
being visible in the bottom of the stria;, but only as crenu- 
lations on the sides of the interstices. 
Morawitz's three specimens came from Hakodadi. I 
have a specimen taken also at Hakodadi, agreeing exactly 
as to form and sculpture Avith his description, but of a 
blueish-black colour, and agreeing still closer Avith Chau- 
doir's description of his C. striatus from the north of 
China. Mr. LcAvis found cupreous and blue-black examples 
Avith simple and crenated stria; at Nagasaki. The Japo- 
nicus of ]\Iotschulsky, of Avhich two difi:erent and equally 
insufficient diagnoses Avere published, seems to agree best 
Avith the typical form of Albrechti, although his figure 
represents the thorax as broadest in front ; his corvinus is 
undoubtedly a blue-black Aariety of the same Avith crenated 
stria;, and his multisiriatus a more strongly punctured 
variety. 
