Longicornia of Australia and Tasmania. 189 
and terminating in a smooth blunt spine; pronotum granular, 
furnished with two blunt tubercles, between which is a compara- 
tively smooth rhomboidal area bounded by a line of golden pube- 
scence, and with a similar line proceeding in the middle, both 
before and behind, from its anterior and posterior angles. Hlytra 
dull black, almost impunctate; each with a very distinct lateral 
carina, proceeding from the slight prominence at the outer corner 
of the oblique shoulder, and extending up to the outer apical angle ; 
this carina is transversely rugulose; basal half of each elytron 
with three large conical tubercles, the first and third of which are 
in nearly the same longitudinal line, and nearer to the suture; the 
second is nearer to the lateral carina, and is placed on the line of 
a feeble sinuous ridge, which starts from a small tubercle at the 
base, ends a little before the apex, and is joined beyond the middle 
by another very short ridge, which passes back from the third 
tubercle. The very sparse golden pubescence of the elytra is 
aggregated to form small spot-like or ring-like patches. The 
abdomen is black and glossy, with two minute patches of golden 
pubescence close to the hind margin on each side of the first four 
segments. Antenne a little longer than the body, dark brown, 
sparsely setose, the basal joints punctured, the fifth and succeeding 
joints clothed with a short close dark brown pubescence, with a 
narrow ashy ring at the base of each. The length of the antenne, 
and the absence of a median depression on the last abdominal 
segment, show that the single type-specimen is a male. The inter- 
coxal process of the first abdominal segment also is similar in 
form to that of the male of D. bilocularis, that is, it gradually 
narrows from behind up to an obtuse point in front. 
I have described this species somewhat fully, as it 
differs very much in some of its characters from D. 
bilocularis, White, and may eventually have to be taken 
as the type of a new genus. 
49. Microtragus senev, White. 
Stokes’s Discoveries in Australia, vol. i., p. 511, pl. 2, 
fig. 7. 
Two examples from Roebuck Bay, one of which closely 
resembles the type. The second example is larger, with 
the prothorax more coarsely but less closely punctured, 
and with the anterior fuscous plaga of each elytron 
placed somewhat farther back from the base. ‘I'he 
antenne are relatively somewhat shorter, so that the 
