THE ENTOMOLOGIST. 235 



regulated by the ancient law of the Medes and Persians, 

 which " altereth not." — G. B. Corbin. 



The Jiiful appearance of Rare Insects. — Can any of your 

 readers explain the fitful appearance of some of our rarities ? 

 This year, V. Antiopa, frequently recorded ; last year, D. 

 pulchella; and in 1870, D. Galii. In the 'Entomologist' for 

 March, 1871, I recorded the capture of a considerable 

 number of the larvae of D. Galii, at New Brighton, in the 

 autumn of the previous year. Indeed, they were not at all 

 uncommon, nor confined to any particular locality, but were 

 met with for miles along the sand-hills, wherever the Galium 

 plant grew. It was difficult to believe they had been sufl^iciently 

 sought for before. This, however, was not the case, as every 

 year, for the last ten or twenty years, the sand-hills had been 

 most diligently searched by some of our best observers, and 

 such a conspicuous larva as D. Galii could not have been 

 overlooked. Again, none have been found since 1870. The 

 blown-over theory surely cannot account for such occur- 

 rences; and in the case of the V. Antiopa recorded it is 

 evidently genuine British, from the peculiar white margin. — 

 Samuel James Capper ; Huyton Park, near Liverpool. 



Argynnis Lathonia and Pieris Daplidice in Jersey. — I 

 took Lathonia rather plentifully on the 1st of April and the 

 1st of June on some sand-hills near the sea-shore: few were 

 on the wing during July and August, but in the middle of 

 September they again appeared. The April specimens were 

 evidenily just out of the chrysalis: they were smaller than 

 autumnal ones. I took one Daplidice during May, and about 

 a dozen more in August. — JV. Poingdesire ; 0, Clarence 

 Terrace, St. Helier's, Jersey, September 23, 1872. 



Argynnis Lathonia at Folkestone. — A specimen of Argyn- 

 nis Lathonia was caught on the 14th September in the 

 Warren, near Folkestone, by H. G. Greenish. — ' Science 

 Gossip; October 1, 1872. 



Argynnis Lathonia and Pieris Daplidice in Kent. — On 

 August 26lh I had the pleasure of capturing one specimen of 

 Lathonia, and saw two others at the foot of the hills at 

 Folkestone. Mr. Harbour, of Deal, reports to me the capture 

 of six specimens of Lathonia : one at Walmer, one at Gussen, 

 and four at Shepherd's Well, by a gentleman collecting for 

 his first season, who also took five Daplidice. One Daplidice 



