326 LIFE-HISTORIES OF AUSTRALIAN COLEOPTERA, 
out parallel chambers, but never breaking into each other's mine. 
The dying foliage is noticeable early in Jannary, their attacks 
causing the limb to become swollen and covered with exudations 
of gum. The beetles come forth in the first week in November; 
I have never taken the beetle at large, but it is evidently common 
on this shrub at certain seasons of the year, though very effectually 
concealed in the dense prickly foliage. The beetle is 10 lines to 
an inch in length, with very large prominent eyes and long slender 
antenme; thorax finely rugose, produced into a stout blunt spine 
on either side; elytra rounded at the shoulders, of a uniform width 
to the tips, which are round, not quite covering the tip of the 
abdomen; the whole insect is of a uniform chestnut-brown, the 
central portion of the wing covers being much lighter than the 
edges, and the whole of them covered with close, fine, fawn- 
coloured down. 
Flab. — The neighbourhood of Sydney. 
Strongylurus thoracicus, Hope. 
Larva dirty white, with rather large head, armed with stout 
black jaws, broad at the tips; body short and corrugated. Dorsal 
view: forehead large, flattened, projecting slightly in front, 
creamy- white with a large blotch of bright yellow on either side, 
covered with stout reddish hairs; thoracic segments narrower 
than the head; first four abdominal segments bearing two corru- 
gated lobes on the summit; the 5th, 6th and 7th with two rounded 
tubercles divided in the centre; all the segments distinctly divided 
from each other at the apical margins; the last two segments 
rounded. Yentral view: thoracic segments much flattened, legs 
very small, short and ferruginous, the margins of all the segments 
fringed with fine hairs. 
The larvae attack the stems of the common garden Pittosporums 
(P. revolutum and P. undulatum) growing in suburban gardens. 
In the neighbourhood of Croydon, where most of my specimens 
were obtained, they completely disfigured a large shrub of the 
former species, large branches three and four inches in diameter 
being cut off; over a dozen of the lower limbs fell during last 
