574 Mr. T. Vernon Wollaston on the 
92. OxYDEMA (nov. gen.). — The present genus is estab- 
lished to embrace three large and very closely allied 
species, — two of "which (taken by Mr. ^Yallace in the 
islands of the Malayan archipelago) are from the collec- 
tion of ]Mr. Pascoe, and the other (from Ceylon) in that 
of ]\Ir. Janson. They are at once conspicuous for their 
elongate, narrow, and fusiform outline being a good deal 
attenuated both before and behind (particularly the latter), 
their dark hue, and their somcAvhat slender, considerably 
lengthened rostrum, — which hoAvever is not quite parallel, 
being appreciably broader in its anterior half (in front of 
the antenna?) than it is posteriorly. Their eyes are 
rounded and prominent, their prothorax is even and much 
constricted in front, their elytra are gradually narrowed 
from the base to the apex (where they have a tendency to 
be separately and minutely rounded-ofF), their anterior 
coxa3 are very remote, and their antennae and legs (the 
latter of which have the third tarsal joint bilobed) are 
rather long. 
93. NOTIOSOMUS {nov. gen.). — Three insects now before 
me — two of which have been communicated by INIr. Pascoe 
as coming from Avestern Australia, Avhilst the other (bear- 
ing the label " Ncav Holland") is from the collection of 
INIr. Fry, — although, I think, specifically distinct, belong 
unquestionably to the same genus, and that genus is 
certainly not far removed from Oxydema. Nevertheless 
I feel satisfied that they cannot be actually associated AA'ith 
the members of the latter, which moreover appear to have 
a more tropical range, — occurring in (at any rate) the 
]\lalavan archipelago and Ceylon ; and I Avould therefore 
regard them as pertaining to an Australian type, Avhich 
])erhaps may have other representatiA'es in its OAvn particu- 
lar province. 
Prima facie, howcA'cr, the present genus has much in 
common Avith Oxydema, — Avitli Avhich it agrees in its 
rather large size, and in the fact of its rostrum being a 
little reduced in Avidth behind the insertion of the antenna;; 
nevertheless it i*ecedes fi'om the exponents of that group 
in the body being altogether (proportionately) less nar- 
roAved, and much less attenuated ]iosteriorly, as aa-cII as 
less shining and sometimes less black ; in its rostrum 
being rather shorter, and not quite so distinctly contracted 
along its basal half; in its antenna; (avIucIi are somcAAhat 
thinner) haA'ing the second funiculus-joint less decidedly 
