NOTES, CAPTURKS, KTC. 105 



quote Mr. J. Russell, who gave an interesting account of taking 

 the larvse of this species in 1871 (Entom. vi. 170). He says that 

 on April 1st he took a good supply of full-fed larvae in the now 

 partly-lost Warren at Folkestone. Mr. Russell says: — "Pro- 

 ceeding along the slopes of the surface of the cliffs, I select those 

 plants of dock or sorrel which have a sickly appearance or 

 stunted growth ; I then dig up the roots and gently remove the 

 surrounding mould, being very careful not to damage the larvse, 

 whose presence is easily discovered by the mines and frass. If 

 the root selected does not contain any larvae I replant it, in 

 anticipation of a future visit. Before leaving the spot I collect a 

 small portion of chalky soil for future use. On arriving home I 

 transfer the roots containing the larvse to the breeding-cage. 

 This latter greatly resembles a fern-case : it has glass sides and 

 ends, and the top is covered with a sheet of perforated zinc; the 

 bottom is loosely filled with a mixture of silver-sand and the 

 calcareous soil of the Warren. In this the roots are planted, 

 watered from time to time, and freely exposed to the rays of the 



sun At the end of May or beginning of June the imagos 



appear, leaving the pupa-cases projecting from the top of the 

 tubes sent up by the larvae. I have not obtained any more moths 

 in the second season from the same plants." This species should 

 be looked for on sea-cliffs all along the south coast. There 

 are not many localities mentioned for it, but that is no reason 

 why others should not be found, if similar localities to those 

 known as its habitat, upon the Kentish coast. 



As the season for obtaining all these moths is at hand, I 

 trust these remarks may lead to the record in the 'Entomologist' 

 of many notes and captures of British clear-wings. 

 Savage Club, London, W.C., March 7, 1887. 



ENTOMOLOGICAL NOTES, CAPTURES, &c. 



Retarded Emergence of Papilio machaon. — Seeing the 

 note by Mr. Chitty on retardation in Eucliloe cardamines, and as 

 such an occurrence is supposed to be rare among butterflies, 

 I am reminded of a case of retarded emergence of Papilio 

 machaon. On August 19th, 1884, being on Wicken Fen for a 



entom. — APRIL, 1887. ^ 



