Australian Phytophaga. 399 
Lachnabothra Duboulat. 
Subquadrato-oblonga, picea, aut rufo-picea, pube pal- 
lide argenteo-aureis vestita; antennis, tibiis tarsisque 
fulvis ; thorace dense pallide aureo-sericeo ; elytris LUgOSIS ; 
pilis argenteo-aureis vestitis, tuberculis elongatis et ob- 
longis disco interno positis, vittaque elevata irregulari 
hic illic ramulum emittente, a callo humerale fere ad 
apicem extensa instructis, disco exteriori apice elevato- 
vittato, antice rude et irregulariter elevato-reticulato. 
Mas. Thoracis disco utrinque leviter gibboso, gibbis 
subconicis; antennarum articulo ultimo non dilatato, 
penultimo zquilato; femoribus posticis sat valde incras- 
satis; tarsorum anticorum articulo basali sat dilatato, 
semi-ovato. 
Long. 24-23 lin. 
Hab.—Western Australia; collected by Mr. Duboulay. 
Thorax as wide at the base as the thorax, sides rounded 
and slightly-diverging at the base, thence obliquely con- 
verging and slightly rounded to the apex in the d, more 
regularly rounded in the other sex; surface closely 
rugose, densely clothed with pale metallic adpressed 
hairs; on either side the disc in the ¢ is a large, broad, 
but slightly raised obtuse protuberance ; elytra coarsely 
rugose, rather densely clothed, when freshly disclosed, 
with adpressed hairs; inner disc with a number of 
strongly raised longitudinal tuberosities, compressed and 
linear at the base, thicker and oblong towards the apex ; 
on the middle portion of the surface of each elytron, 
separating the inner from the outer disc, is an irregular 
raised longitudinal line ; outer disc very coarsely elevate- 
reticulate in front, elevate-vittate on its hinder portion 
towards the apex; these vittz and protuberances are 
usually stained with black, but are more rarely conco- 
lorous with the disc of the elytron ; thighs stained with 
black, strongly dilated. 
The species before us, collected in some abundance 
by Mr. Duboulay, most closely resembles (especially 
when slightly rubbed) L. Wilsoni; both sexes may be 
separated from that species by the different sculpture of 
the elytra; the ¢ may be also known by the slender 
apical joint of the antenne, as well as by the much less 
strongly elevated gibbosities of the thorax. 
EE2 
