EXPLANATION OF FRONTISPIECE. 
Fig. 1. Pupa of Cicada septendecim as it arises from the ground, side view. 
2. Pupa of Cicada septendecim as it arises from the ground, dorsal view. 
3. Pupa of Cicada septendecim as it arises from th<> ground, with the forming 
Cicada beginning to issue through a rent along the middle of the thorax. 
4. Forming Cicada in the straight or extended position. 
5. Forming Cicada in the hanging position, lateral view. 
6. Forming Cicada in the hanging position, ventral view. 
7. Forming Cicada in the clinging position, lateral view. 
8. Forming Cieada, dorsal view, with the wings beginning to inflate. 
9. Forming Cicada in the flat-winged position. 
10. Forming Cicada in the roof- winged position, and final colors becoming fixed. 
11. Side view of complete Cicada, with linal coloring. 
