1336 REVISION OF THE GENUS HETERONYX, 
the base bisinuate, the lobe in the middle moderately strong. The 
head and prothorax ai’e very closely, rugosely, and evenly punc- 
tured. The puncturation of the elytra resembles that of the 
prothorax, but is considerably less close and is modified by a 
system of rather coarse wavy transverse wrinkles ; there are 
faint indications of about nine strife, between some Of which the 
interstices are not quite flat. There are no setfe or hairs on the 
upper surface, except the lateral fringe which is not continued to 
the apex of the elytra. The metasternum, hind coxfe and hind 
body are scarcely different from the same parts in B. fortis. The 
hind femora are markedly wider than the intermediate and have 
the inner apical angle or tooth very well developed, and their 
external edge strongly fringed almost to the apex ; the hind tibia? 
are fringed with strong bristles on their inner side, several being 
placed close together at the base. 
Adelaide district ; also near Sedan. 
H. FRONTALIS, Sp.nOV. 
Latior ; postice leviter dilatatus ; sat nitidus ; ferrugineus ; 
clypeo confertim nigulose, capite postice subtilius minus crebre, 
prothorace fortius minus crebre, elytris for titer minus crebre, 
pygidio sparsius subtilius, punctulatis ; elytris post medium mem- 
brana testacea marginatis ; abdomine ut H. insignis setifero. 
[Long. 5^, lat. 2| lines. 
The clypeus is exceptionally short and wide (being nearly four 
times as wide as long) ; it is evenly margined, and widely rounded 
in front ; it does not form with the rest of the head a continuous 
plain surface ; the clypeal suture is distinctly impressed and almost 
straight. The prothorax is a little more than half again as wide 
as its length down the middle and about half again as wide at the 
base as across the front, which is rather strongly emarginate with 
sharp angles ; its sides diverge in a gentle curve from the apex 
to the base ; viewed from above they seem to form with its base 
on either side a sharp right angle, but if the margin be viewed 
accurately from the side it is seen to curve into the base without 
