78 
The Queensland Naturalist August 1947 
lateral indentations give the larva a rugged, prickly 
appearance. 
Pupa : Pale brown to brownish black. Considerable 
variation is found in pupal colouring. Usually found scat- 
tered in twos and threes about the leaves and twigs of 
the food-plant, but sometimes when feeding on the larger 
trees they are apt to pupate in numbers in such shelter 
as is provided by lower forks or loose bark, Both larvae and 
pupae are always attended by the common Red Mound-Ant 
( Iridoinyrmcx detect us). 
Food- plants : Wattles of many species, but I have 
bred it from the small tree Heterodendron divcrsi folium. 
I dlmenus schraderi t ? .’ Larva. Green with a broad 
reddish brown dorsal stripe shading to brown on the edges. 
Although each segment bears two dorsal tubercles they 
are so small as to be scarcely noticeable unless specially 
looked for. whereas in ictinus they are a very noticeable 
and distinctive feature. The tubercles in schraderi ? have 
sometimes a few short hairs, but they are quite without 
the black hairy spi nes of id in us — in fact it is necessary 
to use a lens to see the 1 short hairs on schaderi f 
Pupa : Uniform shining black in colour. I have never 
seen any variation in this colour, whereas ictinus pupae 
vary considerably. The pupa of schraderi ? is more elon- 
gated, it seems to me, and the abdomen more pointed. 
Found as a rule in cracks and crevices of the tree — fre- 
quently a number together. Unlike ictinus they seldom 
seem to pupate on the twigs and leaves. I have found 
them in such positions, but they are generally parasitised. 
Frequently the larvae wander right away from the food- 
plant if good cover is not available. I have found them 
in the wire-holes of fence-posts and on a number of occa- 
sions 1 have found little colonies of pupae under the bark 
of dead trees some feet away from the food— plant. 
Food-plant : Brigalow ( Acacia harpophylla) and once 
Heterodendron diver si f oliu m . The larvae and pupae are 
always attended by a small reddish ant with black 
abdomen ( Froyyatella kirbyi) and these ants swarm all 
over the larvae and pupae. 
In conclusion I would like to give a few comparisons: 
I have never seen either species associated with any other 
ant thru, its own particular kind. I have never found the 
two on the one tree. While led menus ictinus is widespread 
throughout this district and can lie found anywhere, 
