60 
The hind body with tomentose foveze on the sides of the third 
and fourth segments (only) will at once distinguish this species. 
I have seen about half a dozen examples, among which I do not 
observe differences likely to be sexual except that the antennz 
of some are slightly, and of others not, longer than the body. | 
The mark on the anterior part of the disc of each elytron varies 
from a small almost square black spot to a vitta of variable 
length, and is liable to be almost obsolete. It differs from 
S. fraternum, inter alia, by the extremely coarse sparse punctura- 
tion of its prothorax. 
S. Australia ; Port Lincoln district ; under bark of Eucalyptus. 
S. sparsum, sp. nov. Setis erectis sat sparsim vestitum ; colore 
ut S. ventralis, sed prothorace (exempli typici) piceo ; capite 
antennisque ut S. ventralis ; prothorace quam latiori circiter 
tertia parte longiori, ad latera nodoso, ut S. ventralis sculp- 
turato; elytris a S. ventralis differt puncturarum seriebus 
minus crebris et puncturis in seriebus minus crebre positis 
postice minus obsoletis ; segmentis ventralibus ut §. ventralis 
_ (exempli typici tomento abraso). Long., 3 1. ; lat., $ 1. (vix). 
Very distinct by its diminutive size and the comparatively 
sparse puncturation of its elytra, as well as by its comparatively 
longer prothorax, which is decidedly (and looks much) longer 
than wide. In the typical example the anterior spot on the 
elytra is large, square, and black, but probably it is variable. 
S. Australia ; near Adelaide. 
S. levigatum, sp. nov. Ferrugineum, elytris intra marginem 
lateralem antice vitta fusca ornatis, mesosterno metasterno- 
que paullo infuscatis ; subopacum; supra fere levigatum ; 
capite quam prothorax fere latiori, linea longitudinali 
impresso; prothoraceleviter transverso, lateribussubangulatim 
rotundatis; elytris pustulis minutis setiferis 4-seriatim 
impressis ; antennarum articulo 3° quam 1" et quam 4° 
paullo breviori. lLong., 5$1.; lat. 131 
Perhaps somewhat like S. (Obriwm) ibidionides, Pase., 
although such a conjecture is necessarily not much more than a 
guess, for the author of that species does not vouchsafe any 
information upon a point so important even as its puncturation. 
W. Australia ; Champion Bay ; in the collection of C. French, 
Esq. 
The following is a tabulation of the described species attribut- 
able to Sisyriwm (regarding the characters of the genus among 
the Callidiopside as follows :—femora moderately clavate, pro- 
thorax not furnished with well-defined callosities, such as those 
on the prothorax of Callidiopsis, head not abruptly declivous in 
front, elytra with well-defined colours and pattern, antennz as 
