70 THE ENTOMOLOGIST. 



collection of the British Lepidoptera, I was visiting my relations in the 

 month of June at Keymer, a parish situated between the Burgess Hill and 

 Hassocks Gate Stations of the London and Brighton Railway, I sent to 

 my uncle, the late Mr. Auckland, of Lewes, for a net, and he very kindly 

 gave me the first I possessed ; he was himself an entomologist, and I may 

 say that it was mainly owing to him that I took up the study. As soon 

 as I had obtained the net I went into a field at the back of the house, and 

 the first insect I took was Aporia cratagi, and it was very abundant; 

 probably I might have very easily taken a hundred specimens. This by no 

 means surprised me, as Mr. Auckland had often told me that he had always 

 obtained it in that neighbourhood for many years in succession. Being 

 a young beginner, and feeling sure of taking it in after years, I captured 

 but a moderate number : of these one still remains in my cabinet. There 

 was a small mill-stream ran in front of the house ; the sides of this were 

 well-wooded, and there the insect abounded. I visited Keymer the next 

 year, then intent on taking more A. cratcegl ; I saw but one, and this I 

 still possess. For some fifteen years I was often at Keymer, but never did 

 1 see the insect again ; and I believe that now I am the only Sussex 

 entomologist living who has ever seen the species in plenty in that 

 district, and it appears from Mr. Jenner's note that the insect is extinct in 

 the county. 



" Mr. Auckland's note, which I have before me, gives as localities, 

 * Chailey, May 30th, 1834 ; Newick, June, 1835 ; Lindfield, June, 1836. 

 My own opinion is that in the earlier decades of the century a flight of 

 this insect visited Sussex from some part of the Continent, and that our 

 climate has not been favourable to its permanent estabUshment, and that 

 it has gradually become extinct. 



" Aporia cratmgi has disappeared almost entirely in the New Forest, 

 where I have taken it myself, and where it was at one time very abundant. 

 It first became rare in the eastern parts of the Forest ; it probably still 

 lingers in the western parts, where 1 have taken it of late years, but in 

 1886 I could not hear that one had been seen. 



" Leucophasia sinapis. — Mr. Jenner's note of this species is 'Very 

 scarce and apparently extinct in many localities where formerly found.' 

 This is quite in accordance with my own experience : it used to be taken 

 by my uncle near Lewes in 1834, where it is now extinct, and, although I 

 often visit Abbot's Wood, and have done so for years past, I never found it 

 there. This appears to me to be a case of an indigenous insect becoming 

 extinct in certain parts of Sussex, which, from the weakness of its flight, 

 was not hkely to have flown over from the Continent, as might liave been 

 the case with A. cratcegi, a gregarious insect, which L. sinapis is not. 



" Melitaa aurinia. — Of this species Mr. Jenner's note is ' Local and 

 rare, Chailey and Ringmer.' I have sought in vain for this insect in 



