1402 FURTHER NOTES ON AUSTRALIAN COLEOPTERA, 
1st and second and between the 5th and 6th w’here there is more 
or less puncturation ; the space outside and behind the punctulate 
striate area is rather finely and confusedly punctulate, and there 
are two fairly defined punctulate striae immediately before the 
lateral margin. The pygidium is densely punctulate and clothed 
with long erect hairs at the base and sides while the hind part of 
its middle space is glabrous and much more sparsely punctulate. 
The anterior tibiae are strongly and sharply tridentate on their 
external margin. The mentum is extremely rugulose, longitu- 
dinally concave behind and without lateral tubercles. 
[Long. 11, lat. 6 lines. 
The female (Mr. Macleay writes) has the head rugosely punc- 
tulate, narrowed a little in front of the eyes, recurved at the apex, 
with the anterior angles rounded • the thorax wider than long, 
convex, apex moderately emarginate with a marginal fold which 
thickens into a small triangular extension in the middle on the 
median line, the sides rounded and more broadly margined than 
the apex with strong punctures in the marginal groove, the apical 
angles slightly advanced, obtuse, the posterior somewhat rounded, 
the base rather wider than the apex, broadly but not deeply lobed 
in the middle with a foveate emargination on each side of it, the 
surface smooth and very minutely and thinly punctate ; scutellum 
semi-circular, a little depressed and punctate on the base ; elytra 
scarcely wider than the thorax and nearly twice the length, almost 
truncate at the base, scarcely widened behind and broadly rounded 
at the apex. 
The remainder of the description is similar to what I have 
written above concerning the male. [Long. lOJ, lat. 5 lines. 
D. Australis, Boisd. 
Head nearly smooth, the clypeus somewhat squarely 
recurved, the frontal horn large and grooved in front the 
* The groove on the front of the horn is not a reliable specific character : 
I find it present in some, and absent in other examples of the same species. 
T.B. 
