EXPLANATION OF PLATE 39. 



Drawn in colors by Ella M. Palmer. 



It has seemed desirable to present colored figures of the following insects since 

 in some of their forms they are the ones most commonly mistaken fur the gypsy 

 moth. 



1. Eggs of Eiivanessa antiopa (Linn.) (Vanessa 



butterfly) . 



2. Caterpillar of Euvanessa antiopa. 



3. Chrysalis " " " 



4. Imago " " " 



5. Egg-cluster of Clisiocajnpa ajnericana Harr. 



(tent caterpillar). 



6. Caterpillar of Clisiocampa americana. 



7. Cocoon " " " 



8. Male imago of " " 



9. Female imago of " " 



10. Caterpillar of Orgyia a7itiqtia (Linn.). 



11. Male imago '' " " 



12. Egg-cluster of Orgyia definita Pack. 



13. Caterpillar " " " 



14. Male imago " " " 



15. Egg-cluster of Orgyia leucosiigma (S. and A.) 



(the white marked tussock moth). 



16. Caterpillar of Orgyia leucosiigma. 



17. Male imago of " " 



18. Female imago of " ** 



