1356 REVISION OF THE GENUS HETERONYX, 
is closely and rather finely punctuate and is clothed with long erect 
hairs. The metasternum and hind coxae are punctured closely 
and moderately strongly at the sides, much less closely in the 
middle, — the ventral segments rather evenly and closely, but the 
punctures are feeble at the sides and stronger in the middle. The 
ventral sei’ies consist of fine hairs and are rather conspicuous. The 
hind coxae are much shorter than the metasternum and not much 
longer on the external margin than the second ventral segment. 
The hind femora are evidently wider and very much longer than the 
intermediate, with the inner apical angle very feeble. The tibiae 
are long and slender. 
This species is allied to H. gracUipes and heviceps. 
Adelaide district ; not rare. 
H. PYGiDl.\Lis, sp.nov. 
Sat elongatus ; postice vix dilatatus ; sat nitidus (capite 
prothoraceque subopacis) ; ferrugineus ; supra pilis validis erectis 
sat elongatis (capite prothoraceque crebrius, elytris minus crebre) 
vestitus ; capite crebre rugulose, prothorace et elytris sparsim sat 
crasse nec rugulose, punctulatis ; pygidio sparsim granulate ; clypeo 
antice profunde triangulariter excise ; antennis 9-articulatis ; 
unguiculis appendiculatis. [Long. lat. 1? lines. 
The anterior emargination of the clypeus (of which the reflexed 
border is finely continuous) is so deep as to indent it half way to 
the base ; its surface does not quite form an even continuous 
jjlane with that of the rest of the head ; the impressed clypeal 
suture is fairly distinct, and is angulated in the middle. Tlie 
prothorax is nearly twice as wide as long, and is modex’ately 
narrowed in front with sharp and moderately produced front 
angles ; the sides diverge sinuately from the front to behind the 
middle, where they are strongly rounded, and then converge in a 
continuous curve to the base, with which they do not form a 
distinct angle ; the hind outline of the segment is strongly convex 
all across, but there is no distinct lobe ; the sculpture of its 
