322 Mr. Bates on the Geodephagous Coleoptera of Japan. 
Subfam. CoPTODERINiE. 
Amphimexes, nov. gen. 
Gen. Sfoiognatho fovma, similis. Caput ovatum; ociilis 
vix prominulis. Labrum elongatum antice angustatum, 
apice leviter angustatnm. Mentum medio dentatum, lobis 
triangularibus, acutis. Ligula porrecta, angusta, antice 
bisetosa ; paraglossis earn vix sujierantibus, adnatis. Palpi 
graciles, truncati. Thorax quadratus, postice modice an- 
gustatus. Elytra oblonga, oblique sinuato-truncata, pro- 
funde striata. Pedes elongati ; tarsi gracillimi, angusti, 
articulis 1, 2 et 5 valde elongati, subtequales ; unguiculi 
graciles, multidentati. 
In facies, and in the narrow shape of the head and sub- 
flattened eyes, this genus rcseniljlcs Stenognatltus, and 
other genera of ThijrcopterhKE (Chaud.), but the bisetose 
ligula removes it to the Coptoclerma, according to Baron 
Chaudoir's definition ; and I cannot bxit think that it proves 
the distinction drawn by this eminent Entomologist between 
the two groups to 1)e highly artificial. The eyes are not so 
small and flat as in Miscelus, neither are they furnished 
•with a thick orbit behind, the head narrowing very obliquely 
from the eje to the neck. 
Amplilmenes piceolus, n. sp. 
Vix convexus, saturate fusco-piceus, partibus oris, an- 
tennis, thoracis et elytrorum marginibus angustis, pedibus- 
que testaceo-fulvis ; capite thoraceque alutaceis sericeis, 
hoc quadrato, antice utrinque modice rotundato postice 
parum angustato, anguhs posticis obtusis, subrotundatis, 
margine laterali ex]ilanato et reflexo, pallido ; elytris ])ro- 
funde striatis, interstitiis convexis subtilissime rugulosis 
sed nitidis, 3'" bipunctato. 
Long. 2\ lin. $ $ . 
Nagasaki ; under bark. 
The colour is dark ]iitchy-brown, rather glossy on the 
elytra, but sericeous subopake on the head and thorax ; 
tlie explanated margins of the thorax and the elytra, hke 
tlie antennw, legs and parts of the mouth, are pale tawu}- 
yellowish. The elytra difler somewhat in outline from 
tliose of Steno(/7iathns, Sinurus, &c. in being narrower, 
cs])ecially at the base, where they are not much broader 
than the widest part of the thorax ; the shoulders are 
obliquely rounded. The interstice between the 8th and 
l)th stria^, anteriorlv, is broken w\^ In' large irregular 
punctures. 
