SERICORTD^—HA L ONO TA. 145 



squarely augulated, aud forming one portion of the margin 

 of a large, clear, creamy-white dorsal spot ; costa dotted 

 with yellow-brown, from this proceed some faint lustrous 

 leaden lines through the hinder area ; above the anal angle 

 a large ocellus is indicated by a row of aggregated black 

 dots ; cilia olive-brown. Hind wings dark smoky-brown ; 

 cilia dull white. Female rather larger, similar or often 

 darker, and having numerous, more distinct costal dots, but 

 without the fold. Hind wings blacker. 



Usually constant in markings and fairly so in colour, but 

 a bone- white variety corresponding closely with that of 

 Fciithina varicf/ana, known as nuhifcrana, has been taken 

 near York, while in the adjoining County of Durham many 

 specimens have been obtained of which the white dorsal 

 blotch is obliterated, leaving the fore wings uniformly dark 

 brown. These seem to have been limited to a disused 

 quarry, and were taken by Mr. J. E. Robson and Mr. J. 

 (jiardner. There is reason to think that the insect described 

 by Haworth as costipunctana was a variety of the present 

 species. 



On the wing from June till August. 



Lakva when young naked, fat- white ; later reddish ; and 

 after the winter brick-red, with the head light brown and 

 the dorsal plate clay-yellow. (Hofraann.) 



Autumn to March in the root of Tussilayo farfara (colts- 

 foot), but in the spring it is said to ascend into the flower 

 stalks, though it becomes a pupa in the root. Of this I am 

 not fully satisfied. 



This is a lively species during the day, flying about in 

 the afternoon sunshine over the beds of coltsfoot, and 

 settling frequently thereon, continuing on the wing till 

 dusk. Usually a very common species, and to be found 

 among its food plant throughout the United Kingdom, 

 except that I have no record from the Scottish Isles. 



VOL. XT. K 



