52 
is not of a kind to justify very great certainty. Unfortunately 
Sir William in his descriptions of Helaz has relied as a principal 
character on the number of granules on the elytra and this un- 
doubtedly appears to be subject to much variety. I am con- 
vinced that the series before me cannot be regarded as repre- 
senting more than one species, but there are scarcely two of 
them in which the elytra are identically granulate. I think 
them likely to be H/. interioris because, although the description 
of that species mentions scarcely a character that is really 
specific, they all have near the suture a row of granules closer 
and more conspicuous than those in the other rows (and more 
markedly so than in most other /e/e@i) and this character is 
mentioned in Sir W. Macleay’s description of H. interioris. 
The reliable characters of the insect before me seem to consist in 
its comparatively narrow elongate form and the strongly 
“turned up” direction of the expanded sides of the elytra. It 
is quite true that Sir W. Macleay calls the “margin” “a Jittle 
reflexed” but a comparison of the terms he uses in describing 
other species points to the conclusion of his intending to signify 
that the expanded margin in H. interioris is more reflexed than 
in most other /Helai. 
EPHIDONIUS. ; 
E. parvicollis, sp. nov. Ovalis; opacus ; niger ; corpore subtus 
picescenti ; capite creberrime subtilius subaspere (puncturis 
* majoribus minoribus que intermixtis) punctulato ; prothorace 
quam caput dimidia parte latiori quam elytris fere duplo 
angustiori, quam longiori (et postice quam antice) dimidia 
parte latiori, postice utrinque sulco obliquo obsolete impresso 
(his ambobus literam V obscure simulantibus), creberrime 
subtilissime punctulato (vel potius coriaceo) et puncturis 
paullo majoribus sparsim impresso, lateribus sat explanatis 
et leviter recurvis, angulis anticis obtusis posticis acute 
rectis vix retrorsum directis; elytris quam _ prothorax 
quadruplo longioribus, costis quinis (sutura inclusa) ornatis, 
inter costam et costam puncturarum seriebus 4 impressis 
(serierum interstitiis leviter convexis); labro antice vix 
emarginato ; maris a femine tibiis haud distinctis. _ deme 
oils ep, dad. 
This suebies seems to be near £. Duboulayi, Bates, but differ- 
ing in several respects,—in its entirely opaque upper surface 
(Mr. Bates implies that Duboulayi is not more opaque than 
acuticornis ), its scarcely emarginate labrum, the close punctura- 
tion of its head, the simple tibie of the male, &c. The elytral 
coste under a strong lens show the same minute tuberculation 
continued behind (where the coste become very faint) as Mr. 
Bates describes in £. Duboulayi. 
Lake Callabonna ; taken by Mr. Zietz. 
