396 . Mr. J.S8. Baly on 
This is one of the best defined species of the genus, 
it may be at once known by the peculiar sculpturing of 
the elytra. 
Lachnabothra Waterhouse. 
Subquadrato-oblonga, pallide picea, aureo-sericea; an- 
tennis tarsisque fulvis; thorace hic illic excavato, dense 
aureo-sericeo; elytris nigro-piceis, rude rugoso-punctatis, 
basi et apice elevato-vittatis, disco interno tuberculis 
oblongis magnis instructo, disco externo laxe elevato- 
reticulato ; vittis tuberculisque rufo-piceis. 
Mas. Thoracis disco utrinque in gibbum validum 
subconicum elevato; antennarum articulo ultimo apice 
nigro, penultimo latiori, apice obtuse angulato ; femoribus 
posticis modice incrassatis ; tarsorum anticorum articulo 
basali non dilatato, secundo zequilato. 
Long. 2 lin. 
Hab.—South Australia, Adelaide. 
Thorax as wide at the base as the elytra, sides rounded 
and diverging at the extreme base, nearly straight and 
parallel in the middle, thence rounded and converging 
to the apex; surface excavated into a number of shallow 
pits, densely clothed with adpressed golden hairs, which 
radiate from the centres of the pits; in the ¢ (the only 
sex known to me) the disc is strongly elevated on either 
side into a large subconical protuberance ; elytra spar- 
ingly clothed with adpressed hairs, very coarsely rugose- 
punctate, the base with three short, but strongly raised 
longitudinal ridges, which extend backwards rather more 
than one-third the length of the elytron; they are placed, 
one near the suture commencing with a thickened base, 
at the apex of the scutellum, another half-way between 
the suture and the humeral callus, and a third a short 
distance within the latter; in the interspace between the 
first and second ridge, is seen a small tubercle, and be- 
tween the second and third is a slightly raised, ill-defined, 
longitudinal line; on the hinder two-thirds of the inner 
disc are placed seven or eight large oblong tuberosities ; 
outer disc very irregularly and coarsely elevate-reticulate, 
its hinder portion covered with raised longitudinal vitte ; 
one of these, the second from the suture, is continued 
upwards along the disc as far as the apex of the humeral 
callus; hinder thighs moderately thickened. 
