11 
tralia. Occasionally and in certain spots they became numerous, but 
always disappeared again. I also met Mr. C. French, Baron von Muel- 
ler's assistant, who has had some experience in entomology. He 
claims that the scale has been known to him for thirty-four years, 
yet he has never seen it in large numbers. 
At the Zoological Gardens I found on a species of Eucalyptus a coc- 
cid in such numbers as to cover the under side of all the larger branches 
and the stem in part. Many of the winged males were secreted among 
the crevices of bark, with their two long white setous hairs protruding. 
Numerous larvae of a coleopter were found under chips of bark feeding 
upon the scales, apparently belonging to some clerid. I never met 
with these larvae again in my later researches nor with the coccid men- 
tioned. A great variety of scales was observed at Melbourne ; the 
most pernicious amongst them, a species of Aspidiotus, deserved atten- 
tion. This is A. rossi Crawford, figured on his plate 18 of the Coccidae, 
but as yet no description has appeared to my knowledge. I have seen 
olive trees completely covered by this scale ; it will attack almost any 
kind of tree or shrub as I later observed. Many of the shrubs in the 
Botanical Gardens in Melbourne infested by this scale were in a dying 
condition. The introduction of this pest would be of serious conse- 
quence to the United States and we should be on our guard against 
this as well as a second species of waxy scale, probably a species of 
CeropJastes. This last is covered by a thick, smooth, white, waxy mat- 
ter which effectually protects it. Nothing would destroy this scale, 
except remedies against the newly hatched larvae, which, before they 
exude any wax, are easily killed. The insect was observed all over 
eastern Australia, and it was numerous in the Botanical Garden at Syd- 
ney and in the woods near Brisbane. At the Botanical Gardens they 
could find no remedy except cutting down the infested plants. I recom- 
mended a strong resin wash for the newly hatched larvae. No Icerya 
could be found during my short stay at Melbourne. 
I arrived at Adelaide, South Australia, on October 2, with letters of 
introduction to Mr. Frazer S. Crawford, of the surveyor general's orifice, 
who received me very kindly aud promised me his assistance, which 
promise he honorably fulfilled throughout my stay in Adelaide. I saw 
the man who discovered the parasites of Icerya (Lestoplwnus iceryce), 
and, indeed, felt very happy when he promised to show me a large col- 
ony of the scales on the following day. Early the next morning Mr. A. 
Molineux, agricultural editor of the South Australian Register and Ade- 
laide Observer, and proprietor of the Garden and Field, showed me about 
a dozen orange and lemon trees in a private garden in the suburbs of 
Adelaide all more or less infested with Icerya, and had been so for the 
previous two years. The scales were nearly all full grown, or rather 
nearly all of them had begun to exude cottony matter and deposit eggs, 
yet they were not quite so far advanced as those observed at Sydney. 
The very first scale examined contained nine pupae of the parasitic fly, 
Lestoplwnus, and the scale was still living. Nearly all of the many 
