1807.1 189 
monotonons dirty brown on the back, with greyish sides, and their condition was 
less plump ; tho tubercular warts changed to brown rings, enclosing buff dots, the 
hair or bristles from each only visible through a powerful lens ; and, by tho end of 
October, they began to diminish in length, with other manifestations of turning to 
pupa. — Wm. Buckler, Emsworth. 
Note on Damaster from Japan. — I have recorded the abundance of the smaller 
species in Yokohama, but have not seen it here. Yesterday, however, I found two 
examples of the large one, which is 18 or 19 lines in length. There are rumours of 
a third species of this curious Carahus ! I found Panag^us also for the first time. — 
G. Lewis, Nagasaki, 11th September, 1866. 
Note on Thiasophila inquilina, Mdrh. — I am at a loss to know how Mr. Crotch 
(Newman's " Entomologist," No. 35, p. 175) can have stated that this insect has 
nothing in common with Euryusa Kirhyi. I have not examined the type of the 
latter in his possession ; but, from its description and figure in the " Annual " for 
1858, there can be no doubt that it is specifically identical with the insects known 
to us as T. inquilina; moreover, Dr. Power has informed me that a careful exami- 
nation of this type by himself and Mr. Crotch resulted in a confirmation of his 
previously expressed opinion to that effect. 
Looking, then, at the fact that there are two species of Thiasophila found on 
the Continent, exhibiting a strong resemblance to each other, and of which the 
larger is found with Formica ruja, and the smaller with F. fuliginosa, it is exceed- 
ingly improbable that we also should have two not uncommon species, exliibiting 
the correct resemblance and points of difference, and found in the proper localities, 
of which the one should be without doubt the larger Thiasophila, and the other 
should be not only not the smaller one, but a species unknown on the Continent, and 
that ought to be referred to another genus. In suppoi-t of this unlikely inference, 
Mr. Crotch states that our insect has well developed male characters, and /our -jointed 
anterior tarsi, which " at once connect it with Euryusa, of which genus it forms a 
new and very interesting representative." 
Putting aside the not altogether impossible questions whether Thiasophila and 
Euryusa be or be not correctly characterized, or whether our insect may not form 
a third genus apai-t from both, I would remai-k that it is also not impossible that 
the male characters may have been hitherto ovei-looked, though it is of course very 
improbable (from Kraatz's reference to the absence of salient sexual distinctions) 
that such should be the case. The insect is mentioned as rare, and the male may 
not have been obsei'ved when the description was published ; its characters, indeed, 
being not very prominent when mounted in the continental fashion. In that case, 
as T. angulata exhibits no such distinctions, one can I'eadily understand that the 
insect known to us as T. inquilina might easily, from its extreme resemblance to 
that species, be considered as its congener. 
It is, however, to Mr. Crotch's statement that this insect has fowr-jointed 
anterior tarsi, that I particularly demur. I had satisfied myself that this was not 
the case, before connecting the two names as I did in the Catalogue appended to 
my " British Beetles;" but, as Mr. Crotch has drawn attention to the subject, I 
