BY THE REV. T. BLACKBURN. 
1335 
is pancturecl somewhat similarly to the prothorax. The under- 
side is strongly punctured, modei’ately closely on the metasternum, 
very sparingly on the hind coxae, and extremely closely on the 
ventral segments, in the middle of which the rows of bristles are 
obsolete and the puncturation less close. The hind coxae are very 
little shorter than the metasternnm, and the hind femora very 
little wider than the intermediate, their inner apical portion 
angulated and strongly produced. 
An extremely aberrant species, with its nearest allies in the 
next of my “ sections.” Its height {i.e., the distance that a pin 
run between ks elytra would pass through its body) is greater 
than that of any other Heteronyx known to me. The elytra, too, 
are short, and the longitudinal ridges are quite exceptional. 
Port Lincoln; also taken by Professor Tate at Fowler’s Bay. 
X.B. — I have seen some specimens from the eastern and south- 
eastern parts of S. Australia which are decidedly smaller (3§ lines) 
than my types of this insect, but do not appear to differ other- 
wise. 
H. TOKVUS, sp.nov. 
8at elongatus, postice leviter dilatatus ; minus nitidus ; niger, 
antennis palpisque rufis ; pilis brevibus adpressis sparsim obscure 
vestitus ; capite prothoraceque creberrime rugulose, pygidio sub- 
tilius sparsius leviter, elytris squamose minus crebre, punctulatis ; 
his rugulose transversim rugatis, membrana rufa mai’ginatis ; 
subtus nitidior, fortius nec crebre punctulatis ; abdominis seg- 
rnentis ut })rtecedentis setiferis. [Long. 5-6, lat. 2;[-3 lines. 
Clypeus evenly but not strongly margined, and gently rounded 
in front (more strongly margined and less strongly rounded in the 
female than in the male), its surface continuing the plane of the 
forehead, and the clypeal suture scarcely traceable. The ])rothorax 
is nearly twice as wide as down the middle it is long, its base 
about half again as wide as its front margin which is moderately 
emarginate, with sharp angles ; its sides diverge in a gentle curve 
from the front to the base ; the ba.sal angles are roundly obtuse, 
