278 THE ENTOMOLOGIST. 



those pointed out by Mr. Newman. — Herbert N. Marsden ; 

 Gloucester, March 9, 1871. 



Erehia Ligea. — Has not Erebia Ligea as great a claim to 

 be considered British as Doritis Apollo (or even Polyom- 

 matus Hippothoe), it being, I understand, formerly found in 

 the Isle of Arran ? — James H. Rowntree ; Scarborough, 

 March 7, 1871. 



[Erebia Ligea and Doritis Apollo are about on a par in 

 this matter. I think neither has a claim ; but Hippothoe 

 certainly existed in a state of nature, in the fens, some years 

 ago. I have seen fifty living larvae collected there, and have 

 specimens bred from some of them. — Edward Newman.^ 



Economy of Hesperia Sylvanus. — It was, I believe, the 

 opinion of the old entomologists that there was only one 

 annual brood of this species. In that case, I presume, the 

 assumption must have been that the May individuals seen on 

 the wing had hybernaled. I have myself taken specimens in 

 early summer, in such very bad condition that it was difficult 

 to persuade oneself that they had not long left the pupa. 

 Sylvanus may be found at many seasons, in June and July, as 

 well as in May and August. Its life-history may prove |o be 

 this : from eggs, deposited in the summer, larvae emerge, 

 which feed for a time and then hybernate, feeding again in 

 spring, and becoming adults in May ; from these butterflies 

 appear at the end of May or early in June, continuing 

 frequently on the wing for some time, and depositing eggs, 

 which yield another brood of larvae and August butterflies. 

 In some years it may be that the spring larvae, growing 

 slowly, produce butterflies at a later date, and then the 

 larvae, of which they are the parents, may not attain their fidl 

 size untill the ensuing spring. — J. R. S. Clifford. 



Scarcity of Hesperia Linea. — I can corroborate the state- 

 ment that this species is scarcer of late years. In Hertford- 

 shire it occurred plentifully some twenty years ago, in places 

 from which it seems to have disappeared ; also in localities 

 in North Middlesex, from whence it is not reported now. 

 On Wimbledon Common, where it was once abundant, I see 

 very few of late. In 1869 these butterflies were very 

 numerous on the railway banks between Greenliilhe and 

 Northfleet, in Kent; and in meadows, near Swanscombe 

 Wood, some stragglers. — Id. 



