Longicornia of Australia and Tasmania. 181 
portion of the abdomen, so that it is impossible for me 
to refer it to its true position, a clue to which, however, 
may be obtained from Olivier’s description. 
PrmsartuHrivus, Hope. 
Trans. Zool. Soc., vol. i., p. 107 (1834); Proc. Zool. 
Soc., 1840, p. 55. 
=Petalodes, Newm., The Entomologist, 1840, p. 9 
(=Anatisis, Pase.). 
The species serving as the type of this genus seems to 
have been founded upon a unique specimen belonging to 
the female sex. The male was subsequently described 
by White under the name of Petalodes plagiatus. I have 
not seen females of Petalodes laminosus, Newm., but the 
characters of the male are such that there need be no 
hesitation in considering this species congeneric with 
P. marginellus, Hope. 
The three species of the genus at present known may 
be arranged as follows :— 
Piesarthrius marginellus, Hope. 
Proc. Zool. Soc., 1840, p. 55; Trans. Zool. Soc., 
vol uu.) sp. 200; pl. 12; fie. 13( 2 ). 
Petalodes plagiatus, White, Ann. & Mag. Nat. Hist., 
ser. 8, vol. i1., p. 354 (¢). 
Piesarthrius laminosus, Newm. 
Petalodes laminosus, Newm., The Entomologist, vol. i., 
p. 9, fig. (s). 
Piesarthrius Frencht, Blackb. 
Anatisis Frenchi, Blackb., P. Lin. Soc. New South 
Wales, ser. 2, vol. iv., p. 789. 
This fine species is represented in the Brit. Museum 
collection by a male example from the neighbourhood of 
Torres Straits. It also occurs in Queensland. 
30. Strongylurus ceresioides, Pasc. 
Journ. Linn. Soce., vol. ix., p. 308. 
Tasmanta: Launceston (Walker). One example. 
