Description of Plate I. 



No. 1 and 2. The branch and root of an apple 

 tree with the American blight Aphis Lanata 

 feeding on it, in its different states, p. 41. 



3. The same insect magnified, p. 41. 



4. The same magnified still higher and detached 



from the nest, p. 41. 



5. An insect of the same kind which has ob- 



tained wings, p. 4 1 . 



6. The Caterpillar of the Black veined Butter- 



fly, Papilio Crataegi, p. 55. 

 7 and 8. The same insect changed into the 

 Chrysalis state, p. 61. 



9. The Butterfly in its perfect state, p. 64. 



1 0. The Caterpillar of Phalsena Dispar, Gypsy 



Moth, p. 67. 



1 1 . The male and female Insect in a perfect 



state, p. 70. 



