26 
The female of this insect is very close to that of proboscideum, 
differing however in the very much more obsolete sculpture of 
the hind part of its elytra, in the more strongly rounded front 
margin of its clypeus and in its prothorax having a flat nitid 
space (similar to, but very much smaller than, that of the male) 
in front of the anterior declivity. 
B. proboscideum is so extremely variable an insect that it is 
just possible that the present species is an extreme local variety 
of it, but in a long series of the former I do not find a single 
specimen presenting any of the characters mentioned above as 
distinctive of B. Terre-regine. 
Queensland ; given to me by Mr. Koebele ; also from Mr. Lea. 
(Brisbane). 
ANODONTONYX. 
A. planiceps, Blackb. I am informed by Mr. Jing of Yorke’s 
Peninsula that the larva of this species is extremely injurious to. 
wheat in his neighbourhood, eating the roots and so killing the 
plants. 
ISODON. 
I. nasutus, Blackb. I have recently examined several female 
specimens (from W. Australia) of an dsodon in the collection of 
Mr. Jing which I have no doubt appertain to this species. They 
differ from the (male) type in the prothoracic excavation being 
reduced to a very small area (immediately behind the front 
margin of the segment) which is declivous and flattened rather 
than distinctly concave; in the seriate (and confused lateral) 
punctures of the elytra being more defined,—though very much 
feebler than in any other W. Australian Jsodon known to me ; 
and in the pygidium being much more gibbous, with its punctur- 
ation much closer so as to render the surface somewhat opaque. 
I should have no hesitation in identifying this insect with 
I. levigatus, Burm., were it not for Burmeister’s statement that 
in that species the clypeus is not produced in front (ohne 
vorsprung) ; whereas in J. nasutus the clypeus is particularly 
strongly produced in front. I have, however, seen so many 
specimens from W. Australia of this genus without finding one 
to agree with Burmeister’s description of levigatus that I am 
suspicious of a mistake in the description,—the clypeus having 
possibly been broken in the type. 
I. curtus, Burm. At the time when I tabulated the species of 
Lsodon (Tr.R.S., S.A., 1896, p. 237) I had not seen this one, but 
have since received it from several collectors. It would stand in 
my tabulation (doc. cit.) beside J. Australasie, Hope, from which 
it differs inter alia by its clypeus much narrower in front, its 
prothorax and pygidium very much more finely punctulate, its 
head with a transverse carina in place of a tubercle, and its 
much smaller size. The elytral sculpture does not differ much. 
