EXPLANATION OF PLATE 17. 



Orgyia 'postica. 



Mass of eggs, natural size. 

 Egg, magnified ( x 13). 

 Newly-hatolied iarva. magnified. 

 FuU-srown larva, natural size. 



„ „ „ magnified {x2i). 



Cocoon, natural size 

 Pupa, magnified ( X 2h). 

 8. Female moth, natural size. 



„ ,, magnified (Xlj). 



10. Male moth, magnified { x 2h). 



