CATERPILLARS, 175 



it with her ovipositor, and introducing her eggs 

 through the punctures thus made into the body of the 

 dormant insect. We allowed her to lay all her eggs, 

 about six in number, and then put the leaf under an 

 inverted glass. In a few days the eggs of the cuckoo- 

 fly were hatched, the grubs devoured the lilac chry- 

 salis, and finally changed into pupae in a case of yel- 

 low silk, and into perfect insects like their parent.* 



* J. R. 



