Localities for this species are York. Buttercrambe Moor, 

 Brighton, Faversham, Worthing, Pembury, Lyndhurst, 

 Bristol, Exeter, Tenterden, Worcester, Lewes, Black 

 Park, Ipswich. 



The situations where it is found are woods. 



The perfect insect appears in May and August. 



The caterpillar is green, yellowish-green, or brown, 

 with a paler line on the sides; the head reddish. 



The date of the appearance of the caterpillar is in June 

 and September. 



It feeds 011 the birch. 



The chrysalis is attached by a thread at the tail, and 

 another girdling the body. 



HYRIA AURORARIA. 



PURPLE AND GOLD. 

 Plate XXII. Figure 13. 



THIS insect measures from a little under three quarters 

 of an inch to about that width. 



Male: fore wings lilac-purple red with an orange patch 

 in the centre, more or less extending to the inner corner; 

 the first line is purple-red, in some specimens indistinct; 

 second line purple-red, wide, and placed near the outer 

 margin. Hind wings purple-red in the middle, with a 

 yellow spot, orange-yellow about the inner corner and 

 along the outer and lower margin. 



