78 



THE CAtJAblAN ENTOMOLOGISt. 



The bristles of wart III. turned upward are black, those turned down- 

 ward foxy, or of the same variable reddish tint as all subventral ones. At 

 third moult one single white bristle is emitted straightly from the centre 

 of this wart, not quite as long as the few white ones on eleventh segment; 

 at last stage this bristle appears more ochre and being weaker and more 

 slender than the adjoining ones, it may often be broken by the rapid 

 movements of the larvae. 



The stigmata, just after moult, are white with black slit, but gradually 

 darkening in the vast majority of the larvse to the variable brown colour 

 of subventral region. 



Explanation of Plate 3. 



