Mr: F. P. Pascoe on some new Australian Longicornia. 229 
with a shallow transverse groove above the epistome, impunctate, but 
with a well-marked mesial line ; antennz closely pubescent, more than 
twice as long as the body in the male, with the third, fourth, and fifth 
joints much enlarged, the third especially being thicker than the scape, 
and all, except the first and second, black at their tips; prothorax trans- 
verse, the disk slightly irregular, a few punctures posteriorly, a broad 
spine on each side near the middle; scutellum rounded behind; elytra 
with a few small punctures, chiefly at the base, the apex rounded; body 
beneath and legs finely pubescent, yellowish grey, shaded with paler, 
especially on the former: Length (¢) 8 lines, (2) 10 lines. 
With about a hundred species of the genus before me, I cannot 
very well approximate this to any of them. It is nearest, perhaps, 
to M. argentatus, Hope, but wants, inter alia, the silky pubescence 
of that species. I have dropped the old orthography of Mono- 
hammus, although I believe it to be the correct one (from povos and 
appa), because that now used seems to be universal; and, on the 
whole, perhaps it is as well to adopt, errors and all, the exact word 
of the author who first defines the genus. 
Microtragus Waterhouset. 
M. piceus, dense griseo squamulosus; prothorace ovato, elytris angustiore ; 
elytrorum apice divaricato. 
Hab. Kangaroo Island (Mr. Waterhouse). 
Pitchy, densely covered with minute greyish scales; head very convex 
in front, with a deep line to the epistome, but not on the vertex; an- 
tennz about two-thirds the length of the body; palpi bright luteous ; 
mandibles black, when closed nearly hidden by the lip; prothorax not 
so broad as the broadest part of the elytra, very rugose, the spine at the 
side short ; scutellum small and transverse ; elytra not broader than the 
prothorax at the base, gradually dilating for about two-thirds of their 
length, then slightly contracting to terminate in a broadly divaricate 
apex, on each side the scutellum a short, stout, recurved tooth, from 
which proceed two lines of tubercles, the outer and larger extending 
rather more than two-thirds towards the apex, the inner somewhat 
less; body beneath and legs closely covered with minute scales and a 
sprinkling of stiff decumbent hairs. Length 9 lines. 
Distinguished from its congeners by the divaricate apex of the 
elytra and dull greyish-brown colour, although, under a strong lens, 
the minute scales on which that colour depends are seen to have a 
glossy, almost metallic lustre. The species of this genus are ex- 
cessively rare in collections. Mr. F.G. Waterhouse informs me that 
he has only taken them at sundown, in sandy places. 
