Australian Phytophaga. 393 
rounded ; upper surface convex, covered with numerous 
shallow pits or excavations, anterior half of disc closely 
punctured, subrugose, hinder half finely and subremotely 
punctate; whole surface densely clothed with silky 
golden hairs, which radiate from the excavated pits ; 
on either side the centre of the disc, in the ¢, is a 
broad obtuse protuberance; scutellum densely clothed 
with adpressed golden hairs; elytra sparingly clothed 
with golden hairs, rugose-punctate, hinder third with 
seven or eight raised, broad, longitudinal ridges ; inner 
disc with five oblong, longitudinally placed tubercles, 
which are scattered over the anterior two-thirds of its 
surface; outer disc coarsely rugose; on its surface are 
several irregularly raised reticulations, which enclose 
large, ill-defined, irregular spaces; these ridges are less 
defined in the ¢ than in the other sex ; abdomen and 
legs clothed with pale golden hairs. 
Lachnabothra Brewert. 
Subquadrato-oblonga, rufo-picea, clypeo nigro-piceo, 
pube adpressa aurea vestita, thorace dense aureo-sericeo ; 
elytris rugosis, disco interno tuberculis elongatis, 11s prope 
apicem incrassatis, instructo, disco externi apice elevato- 
vittato, antice irregulariter elevato-reticulato. 
Mas. Thoracis disco leviter gibboso, indistincte bitu- 
berculato, antennarum articulo ultimo (basi excepta) 
nigro, penultimo latiori, a basi apicem versus dilatato, 
apice angulato, acuto; femoribus posticis sat valde in- 
crassatis; tarsorum anticorum articulo basali modice 
dilatato. 
Long. 2-24 lin. 
Hab.—Albany, King George’s Sound’; Swan River. 
Thorax as wide at the base as the elytra, sides rounded 
and slightly diverging at the extreme base, thence 
rounded and obliquely converging to the apex; disc 
excavated here and there into shallow pits (about fourteen 
in number); surface densely clothed with golden sericeous 
hairs, which radiate from the centres of the shallow ex- 
cavations; centre of the disc in the ¢ slightly gibbose, 
the gibbosity transverse, elevated on either side into a 
small illdefined tubercle ; elytra coarsely rugose-punctate, 
