LLUSTRATIONS. 
PLATES. 
Page. 
Plate I. Fig. 1. — Leaf showing pupa cases of the citrus white fly (Aley- 
rodes citri); also a few pupse and eggs. Fig. 2. — Underside of 
orange leaf showing heavy infestation by citrus white fly. 
Fig. 3. — Leaf showing pupa cases of the cloudy- winged white 
fly (Aleyrodes nubifera), an insect prevalent on citrus plants in 
Florida and very closely related to Aleyrodes citri 10 
II. Fig. 1. — Tender growth of citrus swarming with adults of the cit- 
rus white fly. Fig. 2. — Leaf of same enlarged 10 
III. Fig. 1. — Orange covered with sooty mold (Meliola sp.). Fig. 2. — 
Leaf of orange coated with sooty mold 12 
IV. Orange production in India and Java. Fig. 1. — A native house 
in eastern India with orange trees in the yard. Fig. 2. — How 
oranges are grown in Java 20 
V. Scenes in the botanical gardens of India 20 
VI. Traveling in India. Fig. 1. — Country boat, utilized for travel- 
ing in Assam. Fig. 2. — Traveling by horseback in the outer 
Himalayas 22 
VII. The leaf-miner Phyllocnistis citrella in India. Fig. 1. — Young 
citrus trees showing leaves of top shoots deformed by attacks 
of a leaf -miner (Phyllocnistis citrella). Fig. 2. — Cloth cages 
placed over young citrus to protect them from the ravages of 
this leaf-miner 28 
VIII. An orange hedge in the Botanical Garden at Lahore, India. Figs. 
1, 2, 3. — Method of protecting citrus from penetrating rays of 
sun by utilizing cloth coverings 32 
IX. Transshipping the natural enemies of the citrus white fly. Fig. 
1. — The six Wardian cases containing the natural enemies of 
the citrus white fly as they arrived at the laboratory at Orlando, 
Fla. Fig. 2. — A Wardian case with the top removed 36 
X. Fig. 1. — The six Wardian cases containing natural enemies of the 
citrus white fly leaving Lahore at the beginning of their long 
journey to the United States. Figs. 2 and 3. — Native Hindu- 
stani who rendered assistance to the writer in collecting the 
natural enemies of the citrus white fly 36 
XI. Orange production in India. Fig. 1. — Orange production in the 
Khasia Hills of Assam. Fig. 2. — A native orange grower 48 
XII. Transporting oranges to market in the outer Himalayas. Fig. 1. — 
Natives in the Province of Sikkim carrying oranges in baskets 
to the bazaar. Fig. 2. — An orange bazaar in the outer Hima- 
layas 48 
TEXT FIGURES. 
Fig. 1. Map showing present known world distribution of the citrus white fly 
(Aleyrodes citri) 16 
2. Map showing localities in which the citrus white fly was found in India. 23 
)°— Bull. 120—13 2 7 
