PLATE II 

 Etiropean corn borer and its nearest American allies: 



A. — Labium and maxillae; larva of Pyratista nubilalis. 



B. — Left maxilla; larva of P. penitalis. 



C. — Mandible; larva of P. penitalis. 



D. — Mandible; larva of P. nubilalis. 



E. — Character of skin granulations, highly magnified; larva of P. nubilalis. 



F. — Second thoracic and eighth and ninth abdominal segments of larva of P. nubila- 

 lis, showing granulose areas above seta VII. 



G. — Setal map of prothoracic, mesothoracic, third, eighth, and ninth abdominal 

 segments; larva of P. nubilalis. 



H. — Crochet arrangement; abdominal proleg; larva of P. nubilalis. 



