Gcodepliagous Coleoptera of Japcai, 295 
anterior legs. The fourth tarsal joint is not very distinctly 
bilobed in D. caligatus, but deeply emarginated, altliougli 
it has the slender palpi Avhich Chaudoir gives as a cha- 
racter of the genus. As his genus Platidlus is founded 
chiefly on the emargination of the joint in question, it 
would be advisable, perhaps, to merge it in Diplous. 
The thorax is similar in form to that of Patrohus (Pene- 
frefus) rufiidcnnis. I observe a good generic character in 
the widely dilated mesothoracic epiraern. 
Subfam. Trechinte. 
Trechus postilenatus, n. sp. 
Ti: disco affinis; angustus, jwbescens, fulvo-testaceus, 
elytris macula posticu trausversjl communi nigra; thorace 
elongato-cordato, postice modice gradatim angustato, au- 
gulis posticis rectis; elytris punctulatis, punctato-striatis, 
striis 1 — 3 versus apicem fortius impressis, lateralibus dis- 
tinctis. 
Long. 2^ liu. 
Osaka ; one example. 
Similar in size, form and colour to Trechus discus; 
but the thorax of quite a different outline ; it is longer, 
the sides anteriorly are much less dilated, and posteriorly 
much less sinuated, the hind angles being rectangular and 
not acute. The elytra differ also in all the stria3 being- 
visible, and in the first three from the suture, especially, 
being very much deepened and enlarged from beyond the 
middle to the apex, so that the junction of the recurved 
first stria Avith the third is plainly visible. 
T. ephipjnatus, n. sp. 
T. dorsistriato (Moraw.) proxime affinis, sed multo 
major. Elongato-ovatus, castaneus nitidus, elytris ru- 
fioribus, plaga magna communi nigra, palpis pedibusque 
flavo-testaceis; thorace transversim quadrato, postice pau- 
lulum angustato, angulis posticis obtusis, apice vix promi- 
nulis, lateribus leviter rotundatis ; elytris utrinque striis 
quatuor fortiter impressis et punctatis. 
Long. 21 lin. $ ? . 
Var. T. cBgrotus ; om'nino flavo-testaceus. 
Nagasaki, several examples of the type; the variety is 
found at Hiogo ; closely allied to T. rivularis (Gyl.) and 
to T. dorsistriatus (Moraw.). The thorax is short and 
broad, its sides slightly rounded ; it is not much narrowed 
x2 
