244 JOURNAL OF THE ROYAL HORTICULTURAL SOCLETY. 
in this way the species may very probably be carried long distances to 
fresh localities, but its chances of accidentally stumbling against another 
Currant bush cannot be very great. 
The Camellia Coccus or Pulvinaeia 
(Pulvinaria floccosa, Westwood). (Fig. 106.) 
Common throughout the British Isles, living chiefly on the Camellia, 
but it also attacks Orchids and other tender plants. It is easily recog- 
nised by the extraordinary length of the egg sac, which is well shown 
in the photograph. (Fig. 106.) The females are of a pale yellowish 
colour, and in their early stages somewhat resemble the pale forms of 
Lecanium hcsyeridium. In cool conservatories very little trace is to be 
seen of the insects during winter, as they are then very minute ; but as 
spring advances they rapidly attain their full size, and in summer are 
only too conspicuous by their white sacs on the branches and leaves of 
the food-plant. 
Infested plants should receive a winter dressing of the soft soap 
emulsion or of Gishurst's compound, and in spring, immediately the 
white sacs appear, they should be sprayed or syringed with the same 
mixtures. Or, better still, if time can be given, the plants (Camellias) 
should be carefully brushed to remove and destroy the eggs before the 
young escape. 
Cottony Cushion Scale of the Vine 
{Pulvinaria vitis, Linnaeus). 
Superficially this insect is indistinguishable from the species infest- 
ing the Currant (see fig. 105). The illustration of the one admirably 
serves for the other. 
As soon as the white pads begin to show, the insects should be brushed 
away, using a little methylated spirit with the brash. This method will 
naturally lessen their numbers. In winter the vines should be carefully 
" stripped " and painted with a soap emulsion or with Gishurst's com- 
pound. 
Cottony Cushion Scale of the Peach 
{Pulvinaria per siccE, Newstead). 
I am inclined to think this will prove nothing more than a variety of 
the former. It has practically the same habits, and requires the same 
treatment as the Peach Scale {P. j^^f'sicce). 
DIVISION III. 
In this division are included the species which protect their bodies 
with a thin white mealy substance, of which the mealy bugs " are 
■excellent examples. Of these we have three species, viz. Dactylopius 
