Explanation of Plate III. 



Fig. 1. The perfect insect. 



2. The naked egg. 



3. The covered egg, or egg- case. 



4. The newly-hatched larva. 



5. The full-gx'own larva. 



6. The pupa. 



7. The very yoiuig larval cases with egg-case attached, and 



after it has broken off. 



8. The full-grown larval case. 



9. Ditto (showing other side) attached to piece of wood. 



