64 
OPSIDOTA. 
It is not entirely without hesitation that I refer this species to 
Opsidota, but I think the structural characters are sufficiently 
close to justify my doing so—at any rate provisionally. The 
style of marking is very suggestive of Phoracantha, the upper 
surface is nearly devoid of pubescence, the antennal joints while 
very distinctly compressed are less so than in O. infecta, Pasc., 
and the basal ventral segment is a little longer than in that 
insect. The following characters, however, bring it very near to 
Opsidota ; eyes coarsely granulated, intermediate coxal cavities 
closed externally, anterior coxal cavities open behind, head short, 
antenne (in the male) much longer than the body, their joints 
not spinose rather strongly compressed (but only slightly more 
produced at their inner than their outer apex), elytra rounded at 
the apex but having the sutural angle produced in a short spine, 
legs moderately elongate, the femora not clavate, antenne not 
ciliated beneath but with a few long hairs at the apex of the 
joints, their third and fourth joints about equal in length. 
O. guttata, sp. nov. Nigra, elytris singulis maculis 3 flavis 
ornatis ; macula antica transversim subreniformi paullo pone 
basin posita, macula submediana transversa, macula sub- 
apicali parva fere circulari; prothorace crassissime ruguloso, 
ad latera inequali nec spinoso, pone medium spatio levi 
ornato; elytris antice crassissime rugulose, postice multo 
subtilius nec rugulose, punctulatis, apice rotundatis, sutura 
ad apicem spinosa ; antennis quam corpus multo longioribus, 
articulis sat compressis, 3° 4° longitudine equali; ungui- 
culis divaricatis. Long., 8—101.; lat., 21—31. 
S. Australia (interior) ; also W. Australia (near Eucla). 
BEBIUS. 
B. variegatus sp. nov. Hlongatus ; cylindricus ; pilis elongatis 
erectis sparsim vestitus; ferrugineus, femoribus anticis 
abdomineque obscuris, elytris fascia mediana angulata flava 
(hac antice posticeque nigro-marginata, spatio nigro postico 
maculam parvam flavam ferenti) ornatis ; capite prothoraceque 
crebre fortiter rugulosis, in hoc rugulis transversim positis ; 
elytris antice fortiter rugulose, postice paullo minus fortiter 
minus rugulose, punctulatis, ad apicem emarginatis. Long., 
541. ; lat., 1 1. 
Very distinct from B. filiformis, Pasc., by the markings on its 
elytra and the emarginate apex of the same ; also by its prothorax 
scarcely so elongate, not in the least narrowed in front, and with 
the rugulosity of its surface having a distincly transverse 
arrangement. 
