3o8 LEPIDOPTERA. 



own experience a single specimen occurred at the end of 

 July 1868 in Surrey. This is all the attainable evidence as 

 to a second emergence in this country. Mr. Herbert Goss 

 assures me that in Hampshire, and Mr. E. R. Bankes that 

 in Dorset, no case of a second emergence is known to them, 

 and these counties are equally favourable, to all appearance, 

 with Kent. In those places in which this second emergence 

 does occur it is not yet ascertained whether a later gene- 

 ration of larvfe is produced or not. Moreover there is 

 another possible explanation of the late emergence. In 

 the case of a larva which I hapjDened to find nearly full 

 fed in Pembrokeshire and forwarded to Mr. Buckler for 

 figuring, he found, at the end of June, that no butterfly 

 appeared, so he put the jjot, which had contained it, into a 

 hothouse, and in a week, to his great surprise, the larxa 

 came out from its hybernaculum — which in this case was a 

 hollow bit of umbelliferous stick — and walked about, re- 

 maining alive for several days in July, but then died. Sup- 

 posing this larva to have remained undisturbed it appears 

 possible that it might have produced the butterfly in 

 August. 



This is a rather lively little butterfly, though dingy in 

 appearance. It frequents the open places and broad paths 

 in woods, as well as hill-sides, rough fields, and railway 

 banks ; settling on the ground in the hot sunshine, or buzz- 

 ing about the lowest growing flowers, but seldom rising to 

 any height in the air unless to chase another insect of its 

 own or some other species, which it does with sufiicient 

 swiftness. Most plentiful in chalk and limestone districts, 

 but plentiful also in woodlands in all parts of the South, 

 West, and Middle of England and in Wales ; scarce in the 

 fen districts of the Midlands and Eastern Counties ; very 

 local in other parts of the Eastern Counties. It occurs on 

 limestone at Dovedale, Derbyshire ; in Shropshire ; in various 

 localities in Yorkshire and Lancashire ; and probably in some 



