ICERYA PURCHASI. 



93 



fastens itself by the end of its tail to a leaf or some other 

 point of attachment, and then rolls off its maggot-skin 

 up to the end of the body, and waits thus affixed till the 

 pupal changes have been completed, and the Ladybird 

 emerges from the pupa or chrysalis. 



Another of the enemies of the Australian Bug by 

 which the increase of this pest in S. Africa is materially 

 checked is a species of Chrysopa or " Golden Eye," one 

 of the HemeroUidce or " Lace-wings," a family of which 

 the grubs or larvae are sometimes known, from one large 

 item of their food, as Aphis Lions. Of these grubs Mr. 

 Bairstow says : " I do not wish it to be understood that 

 this singular larva preys solely upon Dorthesia " (Aus- 

 tralian Bug. E. A. 0.) But that the larva 



FIG. 31. Chrysopa (?iceryce, n.sp.). Insect and larva, magnified, with 

 lines showing nat. size. (Sketch showing appearance of stalked eggs of 

 Hemeroltiidce. 



decidedly prefers Dorthesia, if it can be obtained, I rest 

 assured, both from out-of-door observations and practical 

 experiments. As the insect appears to be as yet un- 

 described, I have suggested that the specific name of 

 icert/te should be bestowed on it (provisionally at least) 

 as well as on the Rodolia, with reference to the special 

 article of its food. In common with other species of the 



