542 TRANS. ST. LOUIS ACAD, SCIENCE. 



EXPLANATION OF PLATES. 



PLATE X. 



A.— Fnil-growElarva x 4. 



B. — Head of same, veairal yiew X25. 



c— Leg ol same x25. 



D, — Diagram sliowing arrangement of plates on aMomen ; S, spiracles. 



E. — Diagram snowing lonr Yentrai and two latero-ventral plates. 

 F.— Pupa, dorsal Tiewx 4. 



&. — Fnpa, side' view xi 

 H. — Pnpa, ventral Tiewx 4. 

 L— Imago X 4. 



PLATE XL 



A.— Larva X 25. 



B.— Last Mr segments or same, lateral view x 25. 



C — Fnpa, dorsal view X25. 



D.— Imago X 25. 



E.— Leg of same X 25. 



F.— landitileof samex25. 



&.— Antenna of same X25. 



H.— Maxillary palpns of same x 25. 



