collected in Australia and Tasmania. 
249 
also obtained single examples of two others, one from 
Tasmania and one from Adelaide Eiver, but these latter 
are in a mutilated condition. All are quite distinct from 
X. undatvsj Gemm. (= fasciatus, Boh.), the only re- 
corded Australian species of the genus. 
Xylophilus pectinicornis, n. sp. (Plate VI., figs. 12, ^; 
12a, antenna.) 
. Moderately elongate, rather narrow, slightly shining; the head 
black, and the prothorax piceous; the elytra testaceous, with a very 
large, oblong, indeterminate pitchy-brown patch on the disc before 
the middle, extending almost to the suture and lateral margin, and 
narrowing inwards ; the legs and antennae testaceous, the hind 
femora infuscate ; the upper surface finely and rather sparsely 
pubescent. Head thickly, minutely punctate ; the eyes very large, 
narrowly separated in front, very coarsely granulated, the head 
narrowly extended behind them. Antennae nioderately long; joint 1 
stout, long, and slightly curved ; 2 stout, transverse ; 3 very 
elongate, stout, curved, with the inner apical angle produced into 
a very long dentiform process, which extends almost in a line with 
the axis of the joint to beyond the apex of the following joint ; 
4 short ; 5 strongly and angularly produced on the inner side, 
short ; joints 6-10 each furnished with a long, slender, curved 
ramus ; 11 very elongate, strongly clubbed at the tip, with the apex 
acuminate ; the joints sparsely clothed with long fine hairs. Pro- 
thorax convex, broader than long, much narrower than the head, 
feebly rounded at the sides, densely, finely punctate, sharply and 
very deeply bifoveate at the base. Elytra moderately elongate, 
nearly twice as wide as the prothorax, parallel in their basal half 
and gradually narrowing beyond, flattened above, thickly and 
rather coarsely punctured, and each with an oblique depression 
on the disc a little below the base. Legs long and slender, the 
hind femora thickened. Length nearly 2, breadth f mm. 
Hah. Tasmania — Hobart. 
One male specimen, sent by Mr. Walker to the British 
Museum. This remarkable insect is allied to X trifas- 
ciatus, Champ., and other Tropical American species. 
It differs from all these, however, in having joints 6-10 
(instead of 4-10) furnished with a long ramus on the 
inner side, and the third joint abnormally formed ; the 
thorax, too, is much shorter, and the legs more slender. 
It is one of the most interesting of Mr. Walker^s dis- 
coveries, its minute size notwithstanding. 
