PAPERS READ. 
REVISION OF THE GENUS HETERONYX, WITH 
DESCRIPTIONS OF NEW SPECIES. 
By the Rev. T. Blackburn, B.A., Corr. Mem. Linn. Soc. N.S. W, 
Part I. 
The monographs of the genera Diphuceiyhala and Liparetrus by 
the Hon. W. Macleay, published in the Proceedings of the 
Linnean Society of N.S.W. in 1886, are probably in the hands of 
every student of Australian Lamellicornes as valuable books of 
reference. I hoped that Mr. Macleay would continue the work of 
monographing the Melolonthidcti of Australia, and have urged him 
to do so. But he tells me that he has other entomological work 
of a more pressing nature at j>resent, and that it is not at all likely 
he will ever return to the work in question. As be was good 
enough to offer, if I would take up the task, to facilitate my 
efforts as far as possible by the loan of types from his collection, I 
have thought well to enter upon it, and have decided to commence 
with the genus that is the most formidable in respect of numbers, 
— viz., Ileteronyx. 
For this work I have at my disposal, — besides my own collec" 
tion and a large portion of the Macleay collection, those of the 
Adelaide Public Museum, of the Adelaide University Museum, 
and of several private collectors, including a very interesting case 
of specimens obtained some years ago in the Northern Territory 
by ^Ir. J. P. Tepper. 
It will be necessary to preface my revision of the species of 
Ileteronyx Ijy some remarks of a general nature, — first concerning 
