( 4 ) 
at Melbourne identified the species as a new {viz., un¬ 
described) Dortliesia, common in Victoria on different 
kinds of Acacia, and that this report of Prof. M‘Coy 
confirms the conjecture that the insect would prove to 
be a native of Australia ; and in the course of last year, 
on submitting specimens of this so-called Australian 
Bug (sent to me from Port Elizabeth, South Africa), 
through the hands of Mr. 0. E. Janson, London, to the 
eminent authority Dr. Signoret, I was favoured by him 
with the information that they were Icerya purchasi , 
Maskell, with the accompanying observation regarding 
the insect, that “it is found in New Zealand and 
Australia.” 
Judging from the information brought forward up to 
the present time, and likewise looking at the rapid spread 
of the insect over a vast area, from the locality where 
its appearance was first recorded, it appears to be proved 
that it is not indigenous either in Africa or in North 
America, but whether it is so in Australia, and, whether 
it came thence direct to Cape Town or not, that the attack 
was set on foot by imported specimens, and has now 
become naturalised. 
From the large numbers of females and larvae for¬ 
warded to me by Mr. Bairstow, I have been enabled to 
divide the contents of one bottle of specimens, sent over 
direct to me from Port Elizabeth, between Dr. Signoret, 
Paris; Prof. Biley, Washington ; and Mr. Frazer S. 
Crawford, of Adelaide, South Australia, who has long 
bestowed much attention on this pest, besides English 
recipients, which may prove of service in determina¬ 
tion of similarity of S. African species with those of 
other countries. 
In regard to kinds of plants attacked , the number 
named and their various nature points to the Australian 
Bug, or Icerya. purcliasi, Maskell, being a general pest. 
In Prof. Trimen’s Report he mentions it being observed 
on oak, orange, vine, and fig, besides a large number of 
kinds of ornamental shrubs and garden plants, the list 
ranging from large trees down to strawberry plants, and 
