368 
Fig. 1. 
Fig. 2. 
Fig. 3. 
Fig. 4. 
Fig. 5. 
Fig. 6. 
Fig. 7. 
Fig. 8. 
Fig. 9. 
Fig. 10. 
ME. LTJBBOCK ON THE OVA AND PSEDDOVA OF INSECTS. 
Desceiption of the Plates. 
PLATE XVI. 
Egg-tube of Blatta orientalis. X 30. 
Egg-tube of Msclma cyanea. X 60. 
Egg-tube of Pulex irritans. x 60. 
Egg-tube of Telephorus. x 60. 
Egg-tube of Forjicula auricularia. X 60. 
Terminal portion of Forficula auricularia. X 250. 
Egg-tube of Psocus. X 250. 
Egg-tube of Panorpa communis. X 60. 
Egg-tube of Cheiloscia. X 60. 
Part of egg-tube of Nepa, to show the yelk-ducts. X 80. 
PLATE XVII. 
Fig. 1. Egg-tube of Carabus violaceus. X 30. 
Fig. 2. Egg-tube of Cynips lignicola. X 60. 
Fig. 3. Egg-tube of Cynips lignicola. X 60, in a more advanced state. 
Fig. 4. Egg of Cynips lignicola. X 60. 
Fig. 5. Egg-tube of Odynerus. X 60. 
Fig. 6. Egg-tubes of Ophion luteum. X 30. 
Fig. 7. Fgg-iubes of Nepa cinerea. x60. 
Fig. 8. Egg-tubes of Eristalis tenax. X 250. 
Fig. 9. End of egg of Cynips lignicola. xl20. 
PLATE XVIII. 
Fig. 1. Very young egg-tube of Coccus liespmdum, showing epithelial cells, x 2o0. 
Fig. 2. Very young egg-tube of Coccus hespendum, showing vitelligenous cells, x 2o0. 
Fig. 3. Egg-tube of Coccus hesperidum. 
Fig. 4. Egg-tube of Coccus hesperidum. 
Fig. 5. Egg-tube of Coccus hesperidum. 
Fig. 6. Egg-tube of Coccus hss 2 )eridum. 
Fig. 7. Egg-tube of Coccus hesperidum. 
Fig. 8. Egg-tube of Coccus hesperidum. 
Fig. 9. Egg-tube of Coccus hesperidum. 
Fig. 10. Egg- tube of Coccus hesperidum. 
Fig. 11. Egg-tube of C. persicce. x250. 
Fig. 12. Very young tube of C. persic(X. 
X250. 
X250. 
X250. 
More advanced. 
X250. 
More advanced. 
X250. 
More advanced. 
X250. 
More advanced. 
X250. 
More advanced. 
X 250. 
More advanced. 
