22 Mr. T. Vernou Wollaston ow the 
pallidiore, tarsis parvis, brevibus. Subtus profunde et 
grosse punctata. 
Long. Corp. lin. circa H. 
Capta ad Nagasaki in ins. Kushiu, necnon inter ar- 
bores antiquas ad Hiogo in ins. Nipon. 
I have already so fully pointed out the structural 
peculiarities of this insect that I need scarcely do more 
than call attention to its very coarsely sculptured surface, 
the elytral interstices being likewise raised into conspi- 
cuous ridges or costne. There are tliirteen examples of 
it now before me, amongst Mr. Lewis's Coleoptera, a por- 
tion of which have the label appended to them of " Naga- 
saki ;" and others were taken " in deciduous trees near 
the watercourse at Hiogo, in the island of Nipon." 
Genus 7. Exodema (nov. gen.). 
Corpus et structrira generalis fere ut in Coprodema, 
sed illucl paulo majus ac paulo magis parallelum (i.e. 
minus fusiforme), rostro paululum crassiore, oculis vix 
majoribus, antennis sensini longionbus, capitulo submajore, 
necnon mox ante medium (nee omnino in medio) rostri 
insertis, elytris integris (nee ad apicem subtruncatis), 
metasterno sublongiore, pedibusqwe conspicue longioribus, 
— -femoribus sensim mmus clavatis, et tarsis (multo lon- 
gioribus) hand filiformibus, art.° 3''° evidenter latiore ac 
bilobo. 
Ab £^aj, extra, et Ssju-aj, corpus. 
In its general outline, and opake, densely sculptured 
surface (which is more or less sparingly besmeared Avith 
dirty, whitish scales (or, as it were, a kind of mud-like 
deposit), the unique insect from which the above charac- 
ters have been taken so closely resembles Coprodema that 
it might well be regarded, at first sight, as another mem- 
ber of that group ; yet when acciirately inspected it differs 
so essentially in the structure of its feet, which are not 
only much longer but have their third joint (instead of 
small and simple) appreciably widened and bilobed, tliat I 
cannot but treat it as the type of a nearly-allied but pro- 
bably distinct geniis. As regards its less important par- 
ticulars, its antennas are a trifle more elongate, and not 
quite so medially inserted, being implanted just percep- 
tibly before the middle of its (rather thicker) rostrum, its 
eyes are a little more developed, its elytra ai-e not at all 
tx'iincated at their apex, and its metastemum and legs 
