MISCELLANEA ENTOMOLOGICA. 



No. I.— THE GENUS DIPHUCEPHALA. 

 By William Macleay, F.L.S., &c. 



It is now within a few months of thirteen years, since I published 

 in the Transactions of the Entomological Society of New South 

 Wales, a paper under the above title. I adopt the same prefix 

 now, because my intention and objects are the same as on that 

 occasion. It was my wish then as now, to describe from time to 

 time such new or little known species of insects as I came across 

 in ray collection, and, to render such descriptions more interesting 

 and instructive to the Entomologist, to accompany them with a 

 review or revision of the genus or group to which each species 

 belongs. 



In this as in the previous paper, I shall not take my subjects 

 in any classified order but shall pass from one to another, as I find 

 most suitable to my studies. I begin with the very attractive 

 and distinctly Australian Group of the Melolonthidce, comprised in 

 the genus Diphucephala of Serville. 



A very complete and excellent monograph of the genus, from the 

 pen of G. R. Waterhouse, was published in the year 1835, in the 

 first Volume of the Transactions of the Entomological Society of 

 London. At that time only 16 species were known, since then 7 

 species have been added — 2 by Blanchard, 2 by Burmeister, and 3 

 by myself. The present paper adds 20 to the number, so that a 

 short revision of the group seems to me now to be not merely 

 excusable but very necessary. 



My original intention was to give merely references to the species 

 previously described, but finding the number of new species to be 

 described so large, it seemed to me that it would be a matter of 



