508 IMr. T. Vernon Wollaston on the 
given, the only member of it for ^Yllich I am at present in 
a i)osition to vouch ; and that one appears to be common 
in the Japanese archipelago, having been met with by 
Mr. G. Lewis near Nagasaki in the island of Kushiu, and 
at Hiogo in the island of Nipon. 
6. Synommatus {nov. pen.). — If there had been any 
question concerning the intimate relationship which exists 
between the Drijophthorides and Pentarthridcs (of which 
I have never myself entertained the slightest doubt), it 
Avould have been thoroughly dispelled by a genus like the 
present one, — wliich, although pertaining to the latter, is 
at first sight so unmistakeably a Dryophthorid that it is 
difficult to conceive that it can belong to any other group. 
Yet the most essential features of that well-marked sub- 
family, namely a 4-jointed funicuhis and ordinary penta- 
merous feet, are entirely wanting to it, — the former in 
Si/nommatus being ^t-e-articulate, and the latter on the 
usual Ilhynchophorous pattern. Yet so marvellously do 
its external facies, sculpture, and clothing, no less than its 
narrow, transverse, sunken eyes, the general proportions 
of its rostrum and antennas (barring the extra funiculus- 
joint), and the structure of its abdomen and tibire accord 
with Dryoplithorus that one can scarcely resist the con- 
viction that it is *as much a member of the one subfamily 
as of the other ; and my own opinion, consequently, is that 
it is as nearly as possible osculant between the two. 
Although agreeing very much better than Pentaco'ptus 
and CJiOirorrhinus do with the Dryophtlwrides, yet in con- 
junction with those genera (in the latter of which the elytra 
are cariniform on either side of the apex) it may be said 
to constitute a most complete passage between the sub- 
families in question, — though of necessity claimed by the 
Pentarthridcs (with which, however, it has far less, prima 
facie, in common) on account of the structure of its funi- 
culus and feet. 
In the formation of its eyes Synommatus stands alone 
amongst all the Cossonideous tj])QS, with which I am 
acquainted, the nearest approach to it being the genus 
Stcnommatus from INIexico ; for not only are they veiy 
much more approximated on the upper-side than is the 
case in any of the Dryophthorids which have hitherto 
been brought to light, but (which is still more anomalous) 
they are completely conjlucnt beneath, — the tAvo to- 
gether, consequently, well-nigh encircling the entire head ! 
