the genus Sysiropus. 579 



DESCRIPTION OF PLATE X. 



Eig. 1. The cocoon of the natural size, seen in front. 



Eig. 2. The same seen sideways. 



Eig. 3. The same seen from behind, the flattened part being removed, 



showing the dark upper part. 

 Eig. 4. The upper end of the same after the removal of the operculum, 



showing the head of the enclosed pupa. 

 Eig. 5. The operculum or top of the cocoon. 

 Eig. 6. The pupa seen sideways. 

 Eig. 7. The ventral surface of the same. 

 Eig. 8. The dorsal surface of the same. 

 Eig. 9. The pupa seen laterally, showing the front part of the body of the 



imago protruded from its anterior end. 



Eig. 10. The parts of the mouth shown by the imago whilst in the act of 



making its escape. 

 Eig. 11. The perfect insect, Systroims crudelis. 

 Eig. 12. One of its wings. 

 Eig. 13. Systrojms Eumenoides. 

 Eig. 14. Thorax of the same, seen sideways. 

 Eig. 15. Dorsal view, showing the segmentation of the thorax. 



