( lit) 
OVIPOSITION OF NONAGRIA CANN Z (III, IV). 
San Re 
laid. Two are seen with the egg, undisturbed beneath the cuticle, where it was laid 
by the moth ; the third egg is exposed by tearing the cuticle (x 10). 
Diagrams (x 6, from Camera sketches) of ovipositors of N. canne and N. sparganii. 
a. N. canne, showing the opposed hooks, lateral view. 6. End view, dorsal (9th 
abdominal segment) knives apart, as they usually are in dead specimens, and when an 
egg is being extruded. c. The dorsal knives in apposition, forming one sharp point, as 
used in piercing the cuticle of the leaf. 
d. Lateral view of N. sparganii. e. End view. It is proposed to describe these 
organs in the Nonagrias generally in a future communication. Sparganii is presented 
here on account of its close resemblance in general development to that of NV. canne. 
The modifications suit the one (canne) for piercing the cuticle and placing the egg in 
the plant tissue, the other (sparganii) for rolling over a leaf margin and placing the 
egg beneath it. 
