BY THE REV. T. BLACKBURN. 
1361 
punctures. The legs are more shining than the other parts of the 
in.sect, and are stout, with distinct puncturation. The lower two 
I' teeth of the anterior tibise are fairly sharp and strong, the upper- 
I; most tooth is small and blunt. 
This species belongs to a small and isolated group of Heteronyx 
[i (grouping the species by their facies), of which the next two may 
I' be regarded as members. They bear much general resemblance to 
Ilaplopsis, which however has simple claws. 
! A single specimen occurred to me near Port Lincoln. 
H. MACULATUS, Sp.llOV. 
I Sat brevis ; postice leviter dilatatus ; sat nitidus ; setis longis 
' erectis pallidis minus crebre vestitus 3 niger, antennis pedibus et 
elytrorum apice rufescentibus capite sparsim minus crasse, pro- 
thorace elytrisque crassissime nec profunde (illo sparsim his minus 
sparsim), punctulatis 3 iabro clypeum sat fortiter superante 3 
, antennis 8 -articulatis 3 unguiculis bifidis. 
[Long. 2 (vix), lat. 1 line. 
The head and clypeus scarcely differ from those of the 
preceding species in any respect except in being nitid, with more 
distinct puncturation, and the labrum more strongly rising above 
the surface of the clypeus. The prothorax is nearly twice as 
wide as long, its base more than half again as wide as its front 
margin, which is very lightly convex with well defined but not 
produced angles, the sides arcuately narrowed from base to front, 
the hind angles (viewed from above) fairly well defined, the base 
very lightly bisinuate and widely and gently lobed in the middle. 
The extremely coarse rugosity (scarcely to be called defined 
puncturation) of the elytra has a slight linear teTidency which 
gives in some lights a slight simulation of striation, and there is 
a good deal of transveise wrinkling 3 the lateral fringes are not 
distinct from the general pilosity. The underside and legs 
scarcely differ from those of //, suhmetalUcuH, except in Ijoing very 
nitid with the sterna, cox;e, and ventral sf^gments distinctly 
jumctulato — very sparingly in the middle, but more clo.sely at the 
