38 
PLATYPHYMATIA. 
S. squalidus, Macl. Among some specimens sent to me b 
Mr. Cowley which agree very well with Sir W. Macleay’s 
&c., except in the anterior elevation of its prothorax being much 
less strong, its pygidium notably less gibbose, and its hind 
femora unarmed. 
OCNODUS. 
0. mrs sp. nov. Ferrugineus, clypeo picescenti, antennarum 
a dilutiori ; nitidus; fortiter punctulatus, elytrorum 
parum angus s 
poe parang lateribus leviter rotundatis, basi vix lobata ; 
elytris obsolete tricostatis, haud setosis ; tibiis anticis extus 
Pius Long., 44 1.; lat., 211. 
Differs from Q. spinicollis Blackb., and fallax, Blackb., inter 
alia by ida bed hind angles of its prothorax, from O. decipiens, 
Burm., and ferrugineus, Blackb., by the absence of set on the 
upper surface, and from lu ugubris, Blackb., by the very much less 
close puneturation of its pronotum. The upper margin of the 
labrum is distant from that of the clypeus (as in O. fallax). 
The sculpture of the upper surface is in all parts very similar 
to that of O. fallax. It should be noted in respect of this 
insect (as I have pointed.out in describing other species that I 
have attributed to Ocnodus) that it is possible it is not really 
congeneric with O. . decipiens, Burm., a species that I have never 
been able to identify. 
S. Australia; basin of Lake Eyre (taken by Herr Koch). 
HETERONYX. 
H. unicus, sp. nov. Sat brevis; sat latus; modice convexus ; 
nitidus ; subglaber, lateribus corpore "subtus pedibusque 
ite confert 
te co 
rugulose, prothorace sparsius sat fortiter, elytris insequaliter 
, puncturis sat grossis et aliis minoribus ineequaliter 
* . - . l 
fortiter reflexo antice late rotundato, sutu a clypeali minus 
distineta ; prothorace quam bingo fere ane latiori, antice 
in g 
aru 
circiter 4 instructis, his quam interspatia magis exces 
punctulatis ; tibiis anticis extus 3-dentatis; labro clypeum 
