1416 
FURTHER NOTES ON AUSTRALIAN COLEOPTERA, 
of the base. The elytra are not in any part at all wider than the 
widest part of the prothorax ; their sculpture scarcely differs from 
the same in B. inconstans save in being slightly finer, the punctu- 
ration, moreover, being more evenly distributed and scarcely 
interrupted on the interstices of the striae which are less convex 
in front and more so near the apex (but these last two characters 
are slight and perhaps not very reliable) ; the outline of their 
anterior margin is very markedly more strongly convex corres- 
ponding to the evidently stronger bisinuosity of the hind edge of 
the prothorax ; their apical sculpture does not differ from that of 
B. inconstans in any reliably specific manner, but the evenness of 
the marginal outline is in avei’age specimens even less interrupted, 
while in some specimens there is an evident oblique truncation, 
the extremities of which are defined though not spinose. The 
underside and legs are conspicuously clothed with rather coarse 
adpresssed short whitish scale-like hairs. The structure of the 
apical ventral segment appears to be as in B. inconstans, to which 
the present insect is closely allied, though diftering considerably 
in the shape of the prothorax, (fee., (fee. 
The preceding two species of Bubastes both appear to be near 
B. sphenoida, L. (fe G., so far as can be judged from the very brief 
description of that insect in which scarcely any tangible characters 
are mentioned, but “ elytres Vji-epineuses a I’extremite” will not 
fit either of them. Moreover, there is a third species of Bubastes 
in the Adelaide Public Museum in which the elytra are bi-spinose 
at the apex, and which may be sphenoida, although I doubt it on 
account of the puncturation being coarser than the description of 
sphenoida would lead one to expect. From Briseis conica, L. (fe G., 
these insects differ in the non-denticulate margin of their elytra, 
from Eurybia by their much stouter and more robust form, (fee., (fee. 
ELATE R ID 
Tetralobus. 
This genus presents extreme difficulty to the student, as far as 
concerns its Australian species, owing partly to the close alliance 
of some of its members to others, and partly to the insufficiency 
