623 
Lone Tureap Meaty Bug (Dactylopius longifilis, Comstock). 
In general appearance the female of this species does not differ 
much for D. destructor, only a little longer, and has four long white 
threads at ihe posterior end of the body; is found on green-house 
and garden plants. 
Remedy.—See page 624. 
OrancE Meaty Bug (Dactylopius citri). 
The female of this species is not unlike that of D. adonidum in 
appearance, but has not the brown band on the middle of the back, 
: : but becomes completely en- 
veloped in a white mealy exu- 
dation. This, like the other 
species of mealy bugs, forms 
no external scale covering, the 
whitish mealy powder taking 
its place. 
This mealy bug, like most 
other species of mealy bugs, 
has a very wide range of food 
plants, and is a very serious 
pest of the lemon and orange 
trees, attacking both plant 
and fruit. In Italy, at the 
present time, it is one of the 
most serious pests with which 
Dactylopius citri, Female enlarged. (After the citrus fruit-growers have 
Berlese.) to contend, and causes a 
great amount of damage to the orange crop in some dis- 
tricts of that country. This pest has become well established in this 
State, but its spread has been arrested by the introduction of the 
ladybird (Cryptoleamus 
montrouziert) and  an- 
other unnamed form from 
Spain. 
From the fact that 
these mealy bugs have no 
external scale covering, 
and being soft bodied, 
would lead one to believe 
that they could be easily 
destroyed; but such is not 
the ease, as they have 
proven to successfully re- 
sist the deathly effects 
of the hydrocyanic gas Daetylopius citri. 
fumes. @ Front, b back view. (After Berlese.) 
fad 
