24 Mr. T. Vernon Wollaston 07i the 
latitudlne paulo crescentibus ; capitulo sat magno, ovali, 
distincte annulate. Pedes validi, antici ad basin fere ap- 
proximati, intermedii distantiores, po^^zcz valde distantes: 
femoribus muticis: tihiis ad apicem externum in uncum 
magnum productis: tarsis brevibus, art.'^ 1""°, 2^° 3*'"que 
longitudine subjequalibus (nee 1'"° elongate), 3"° fere sim- 
plici (i.e. vix dilatato, vix bilobo), ult.""" unguiculis minu- 
tissimis armato. 
Obs, — Genus Phlceophago et Rhyncolo affinitate proxi- 
mum, sed corpore angustiore, magis fusiformi, minus 
convexo, prothorace magis elongate, rostro longiore gra- 
ciliore, tarsisque sensim brevioribus (art.'* 1"'°, 2^^° et 3*'** 
longitudine subtequalibus, nee 1"'° elongate) facile distin- 
guitur. 
A Phloeophagus , et (tooiiol, corpus. 
(Typus. — P. 7nhiufum.) 
The two insects from which the above structural diagno- 
sis has been compiled are so dissimilar in size, and are 
so distinct in several points of their structure (albeit not 
very important ones), that I cannot feel entirely satisfied 
that they should be looked upon as members of the same 
actual gi'oup; yet, being unwilhng to multiply genera 
unnecessarily, and thinking it far fi'om improbable that 
species of intermediate statiu'C will ultimately be brought 
to hght, I prefer to treat them as congeneric, — premising 
only that I Avould desire to regard the P. mmutum as the 
type. . . , . 
In their py'imdj'acie aspect these two msects have more 
peihaps in common with the European Phloeophagi and 
Rhyncoli than any other of the species which were ob- 
tained by Mr. Lewis in Japan; and yet from both of 
those (nearly allied, and not very satisfactoi'ily separated) 
forms they are, I think, manifestly distinct, — differing in 
being not only narrower and more fusiform and less con- 
vex, bxit likewise in their prothorax and rostrum being 
proportionately more elongate, whilst their tarsi are ap- 
preciably shorter, the first joint being (instead of produced) 
subequal in length with the second and third. 
Although, however, the antennas of both of the species 
described below are inserted medially, there is a slight 
disparity in the structure of those organs, as well as in 
that of their tibire, — the second funiculus-joint being no 
longer than the following ones in the P. inimitum, and 
