62 The Queensland Naturalist. Feb., 1922 
wherein they live and subsisting on the bark and sappy 
matter, others drawing in leaves for food under a canopy 
made of silk and fragments of matter, including their own 
dejectamenta. The moribund state of the tree induced by 
these depredations is still further increased by the attacks 
of other insects, as Coleoptera, which lay their eggs about 
the damaged parts and thus obtain a footing. Many scale 
insects also add to the trouble. 
What had been a fine specimen of Acacia Bailey ana 
growing in my garden lost all its top branches, and being 
no longer ornamental was cut down and stump and roots 
dug out. From the roots six large grubs of Xyleutes 
eucalypti, about 44 in. long and f in. in diameter,* were 
obtained. In the stem and branches numerous larvae of 
Maroga unipun ct ana, also those of various weevils, longi- 
corns and others, were found. The Maroga and weevils 
are deadly pests, for the first ringbarks, causing the stem 
above to die, and the weevil larvae ( Chrysolophus specta- 
bilis) make numerous burrows. The twigs also were con- 
siderably affected by cottony cushion scale. A bonfire was 
made of the lot, with other rubbish. 
The larvae of several pretty butterflies feed on the 
foliage and flowers, and in the latter case may be inimical 
in preventing formation of seed-pods. 
However, the Wattle is a hardy tree, and thrives under 
conditions most adverse. Many kinds are beautiful in 
appearance, and, when laden with their masses of golden 
bloom, diffuse an aroma unequalled for fragrance. It is 
indeed worthy to be the National Flower. 
LONGICORN COLEOPTERA OF THE WATTLES, 
BRISBANE DISTRICT. 
The long-liorned beetles herewith noted number 24, but 
of these three species, Nos. 10, 22, and 23 are of doubtful 
occurrence, while two or three also affect quite different 
plants, as No. 14, which is likewise found in small stems of 
young Casuarina saplings. 
Family Cerambycid2e. 
Sub-family Prionides. — 1, Sceleocantha glabrieollis. 
Sub -family Ceramby deles. — 2, Nystrocera virescens; 
3, Pachydissus sericus; 4, Phoraeantha fallax; 5, Didymo- 
cantha obliqua ; 6, Piesarthrius marginellus; 7, Uracanthus 
-sp. ; 8, Stephanops nasuta ; 9, Phalota tenella. 
Sub-family Lamiides. — 10, Probatodes piliger; 11, 
Hebecerus croeogaster ; 12, H. marginicollis ; 13, H. niphon- 
oides; 14, Symphyletes albocinetus; 15, S. pulverulens; 16, 
S. variolosus; 17, S. vicarius; 18, Penthea pardalis; 19, P. 
