SUMMER NUMBER 11 
quickly curl at the point of attack. Repeated examination of cross 
sections of these leaves has shown many of the cells to be broken 
down and deficient in protoplasm, leaving a predominating quan- 
tity of cellulose. 
The injury to the blossoms causes a large percentage of them to 
fall, while on the young fruit a double injury is inflicted. In the 
first place the rind of the fruit where it is punctured by the beak 
of the insect, develops little protuberances or knobs, loosing 
the smoothness of healthy, uninjured fruit. When punctured near 
the stem end much of the fruit was found to fall, often several 
weeks after the outbreak of the infestation. Besides the injury 
caused by the puncture and removal of the sap from the portion 
of the tree attacked, it is probable that a toxic effect is also 
produced by the insect. 
NATURAL ENEMIES 
It has been the experience of the writer in all his previous 
work on the Aphididae that in the case of outbreaks the aphids 
were usually attacked by hordes of natural enemies which soon 
controlled them, but in this instance the “laissez faire’ policy 
does not seem to do, as this aphis is the least attacked by natural 
enemies of any species studied. This is due perhaps to several 
causes such as the recent introduction of the species, or the in- 
fluence of meteorological conditions. 
Of the beneficial insects three groups have been found to 
work on the aphid in the following order. First in importance 
about Lakeland is the Family Coccinellidae, or lady-beetles, of 
which the following species were found: The Blood Red, Cy- 
clomeda sanguinea, the Twelve-Spotted, Hippodamia convergens, 
the Twice-Stabbed, Chilcorus bivulnerus; and the little Scymnus 
binevatus. Next in economic importance are the syrphus fly 
larvae, Allogapta obliqua, and Lysephaebus testaceipes, and 
third the Green Lace Wing Fly or Golden Eyed Lace-Wing of 
the Chrysopa genus. 
Numerous collections of specimens were made for the pur- 
pose of determining whether any fungi were of economic value in 
the control of this pest, but no definite results were obtained. 
Among the enemies of lesser importance were recorded the tree 
cricket, and the lizard “‘camaleon.”’ 
Relation Between Ants and Aphids. An intimate relation was 
observed between ants and this species of aphid. Wherever 
ants were found to be numerous, the aphids were also found 
