01 co 
PLATE XX. —Sphenoptera Gossypii. 
Cotton Stem Borer. 
Fig, 1. Larva in stem of Cotton plant. 
Larva, magnified. 
Pupa in stem, x 3. 
4. ,, magnified. 
5. Imago magnified. 
6. Imago. 
7. Parasite. 
