1344 
REVISION OF THE GENUS HETERONYX, 
tlie sides are rather strongly rounded ; the hind angles viewed 
from above appear almost rounded off; the base is almost evenly 
rounded from angle to angle, so that thei'e is little indication of 
a basal lobe. The elytra bear (in addition to the transverse rugae) 
a number of obscure longitudinal wrinkles (especially one near 
the suture), which give them a slight appearance in some lights 
of being striate ; they ai-e punctured only a little more closely 
than the prothorax, but the presence of the numerous wrinkles 
makes their whole sculpture look considerably closer. The meta- 
sternum and hind coxae are sparingly (especially near the middle) 
and strongly punctured, the latter considerably shorter than the 
former, and having their hind external angle very much rounded 
off. The ventral segments are punctured rather sparingly and 
strongly at the sides — more obscurely in the middle ; the ventral 
series consist of very fine soft hair.s, and are much confused with 
other hairs and hardly conspicuous. The hind femora are 
moderately wider than the intermediate, their inner apical angle 
well defined, their under surface {i.e., that which is visible when 
the insect is laid on its back) impunctate or nearly so (the usual 
roics of punctures of course ai’e present). 
I have met with a few specimens near Beltana, in the interior 
of S Australia. 
H. BREviCEPS, sp.nov. 
Minus elongatus ; postice leviter dilatatus ; sat nitidus ; nigro- 
piceus, antennarum clava pallida ; clypeo confertim rugulose, 
vertice sparsius, prothorace valde sparsim, subtilius punctulatis ; 
elytris pygidioque fortiter nec crebre punctulatis. 
[Long. 4J, lat. 2^ lines. 
The specimen before me being a very old one it is likely that 
the colours of a fresh example might be brighter. The head is 
vei'y short and wide, the clypeus evenly margined and slightly 
Binarginate in an upward direction in front ; the clypeal suture is 
strongly impressed and angular, the plane of the clypeus not quite 
continuous with that of the rest of the head, the surface of the 
same closely, rugosely and rather finely punctured, that behind the 
