202 DEL AGO A BAY. 



long interval I gave them some more, placing 

 them on the leaves ; this time they went to the 

 edge of the leaf and tried to eat, but they 

 seemed incapable of closing their jaws, and after 

 a few ineffectual attempts to make an incision, 

 returned again to the net covering the box. 

 In about a month one suddenly suspended itself 

 and changed to pupa, and in ten days the 

 butterfly emerged, differing from all the others 

 by a streak of bluish-grey across the fore-wings. 

 The other two lived on for a fortnight, when I 

 accidentally smashed one, and shortly after the 

 other shrivelled up and died. The only expla- 

 nation I can suggest is that they were partially 

 paralysed through the netting by one of the 

 wasp tribe. 



Another time the food supply almost failed, 

 I had taken a few of a species of a small web- 

 spinner (Botyodes Asialis), which were swarming 

 on an enormous tree, covering it with web, and 

 amongst the leaves found a solitary stranger, 

 bluish- white, with a black collar and a few other 

 black markings, and covered with yellow spines, 



