BY THE REV. T. BLACKBURN. 
1349 
the middle) almost with an even curve. The transverse wrinkling 
of the elycra is not at all conspicuous ; these show scarcely any 
trace of striation, and their lateral fringe is not continued round 
the apex, which has a very narrow and obscure membranous 
border. The pygidium is sparsely clothed with long very fine 
erect hairs. The underside is nitid, sparsely (especially on the 
middle of the metasternum), and very strongly, punctured. The 
hairs in the rows on the ventral segments are very fine but long 
and continued all across. The hind coxae are much shorter than 
the metasternum, the hind femora very little wider than the inter- 
mediate, their inner apical angle rounded and not prominent. 
Hind tibiae slender. 
A specimen evidently identical with this species, in the collec- 
tion of the Hon. W. Macleay, is of a dark ferruginous colour. 
This species is allied to the preceding. 
S. Australia ; also occurs in N. S. Wales. 
H. Darlingensis, sp.nov. 
Sat elongatus, postice vix dilatatus ; sat nitidus ; piceo-ferru- 
gineus, antennis palpisque testaceis; pilis brevibus adpressis albidis 
sparsim vestitus; capite crebre rugulose, prothorace sparsius 
fortiter, elytris spansius minus profunde, pygidio (longitudinaliter 
carinato) crasse sat dense, punctulatis. [Long. 3, lat. 1^- lines. 
Closely allied to II. satdles, Blackb., the description of which 
will apply accurately to the present insect except in respect of 
the following particulars. 
The reflexed margin of the clypeus is not stronger at the sides 
than in the middle ; the sides of the prothorax are much more 
strongly rounded, and the base of the same is evidently mon; 
strongly lobed ; the pygidium is more coansely and closely 
punctured and has a strong keel down its middle, and the inner 
apical angle of the hind femora is more prominent. 
Darling River; in the collection of the lion. W. IMacleay. 
8G 
