Nov., 1925 
The Queensland Naturalist. 
45- 
harden. The outer world of sunshine beingr reached, the 
Ajax, with a buzz, is off to seek his dinner. 
I may here mention that the blackbutt trees arp 
often to be found in the scrubs where the brigalow 
grows. In searching for Ajax, the collector strips the 
bark from the latter trees, and if fortunate, finds the 
large hole of the larva, which may contain a fully 
matured insect. 
Once, Avhen staying with friends a few miles out of 
Warra, a little township on the Roma line, I found on 
a small plain numbers of these much valued Buprestidae, 
dead and discoloured by the sun. Numbers had also 
]»een washed into the catches of the water tanks. 
0 
THE EUCALYPTS OR OUM TREES OF THE 
BRISBANE DISTRICT. 
By C. T. White, F.L.S., GoA^ernment Botanist. 
IV. 
(Continued from the ‘‘Queensland Naturalist” 
Vol. V., p. 16.) 
5 Eucalyptus t^reticomis (Blue Gum.) 
Description. — A tree attaining a large size, the trunk 
rather glossy marked with large red, blue or greyish 
patches. Coppice (‘Csucker^' or “stump"') shoots quad- 
rangular, Avith leaA’es A'eiy broadly ovate, 3 to 4 inches 
long, and mostly over 2 inches Avide. As the coppice 
shoot or young tree groAvs, the leaA^es assume more of the 
adult form, the branchlets become terete, and the leaA'cs 
in this stage attain a large size, np to 10 inches long 
and 3 inches Avide. Grdinary (adult) leaves, narrow- 
lanceolate, straight or more or less falcate; the upper 
part tapering to a long acute ai>ex. Petiole 4 to f inch 
long; blade 5 to 8 inches long, to 1 inch Avide ; the 
midrib distinct, main lateral neiwes oblique, fairly AAude 
apart (the distance varying from 2 lines to i inch) inter- 
mediate A^eins and reticulations distinct in the dried leaf; 
iutramarginal vein distinct, i to 1 line removed from the 
edge; floAvers in 2 to 7 flowered umbels, the umbels borne 
in the leaf axils; the peduncle about ^ inch long; calyx 
tube turbinate, tapering at the base into a slender pedi- 
