1472 rUBTHEB XOTES OX AUSTBALIAX COLEOPTEBA, 
two thirds of their length. The legs are extremely like those of 
Poiyopiiltts, Vjut are a little longer (esj>ecially the tarsi) and more 
slender. The prostemal process, though very narrow (Hke a 
knife-edge) distinctly separates the coxse and bends down hind ward 
(visibly from behind) ; the mesostemal process on the other hand 
can scarcely be traced distinctly between the intermediate coxae, — 
thus reversing the structure of Polyoptihus where the intermediate 
coxae are more distinctly separated than the anterior. The basal 
ventral segment is rather more than tv^ice the length of the next 
two together. 
The resemblance of this insect to a Toxotu8\& most extraordinary. 
N. Territory of S. Australia ; taken by Mr. J. P. Tepper. 
Ditbopidus. 
D. Palmerstoxi, sp.nov. 
Late ovatus; aeneus; labro, antennarumque articulis pidmis sex 
ful vis; articulo 1“ robusto, 2° subgloboso, 3° elongate, 4°-6° sat 
breribos; capite prothorauj^Kjue crebre fortiter punctulatis; elytris 
punctulato-striatis, interstitiis planis (extemis vix convexis) crebre 
minus subtiliter punc-tulatis. [Long. 1-1 J, lat. ^li lines. 
A very wide almost semicircular s|>ecies ; the even, close and 
very strong puncturation of the head and prothorax, together with 
the rather close and strong confused puncturation of the elytral 
interstices, without amy transverse strigosity, wMl distinguish it 
from all others bearing a general resemblance to it. Probably 
D. larninalv^, Chap., is its nearest ally from which it differs inter 
alia in the clypeus not being bidentate (at least not in the specimen 
Ijefore me), in the prothoracic puncturation being by no means 
“ acdculate,” and in the even punctulate striation of the elytra. 
N. Territory of S. Australia ; taken by Mr. J. P. Tepper. 
Idiocephala, 
The following sr^des I believe to be Aporocera caioxantlva^ 
described by Mr. Saunders on specimens from Port Essington. 
