ADDIT/ONS A. YD COKh'ECTRhVS. 335 



out hooks or spikes; spiracles distinct, black. I know of 

 no pupa more smoothly glossy. Strange to say. the larva 

 tloes not seem to have been noticed, except when laid-up 

 and about to change to the pupa ; ]\[r. P. C. Jleid says that 

 its food must be either bearberry (Arctostdphylos uva-arsi), 

 crowberry (Bmpdri'm iiujrtria.), lichens or heather, and he 

 inclines to the first named. 



