NOTES, CAPTURES, ETC. 323 



thin, and the cretaceous very near the surface, the influence 

 exerted on the flora must necessai'ily be very great. I think this 

 is so in all cases where isolated specimens of a species, generally 

 restricted to some particular soil, have been found in unlikely 

 places. L. corydon has been taken in Epping Forest (Entom. 

 xviii. 242; and Newman's 'British Butterflies,' p. 132); also at 

 Barnes Common (Entom. xviii. 316). I dare say that many 

 readers of the * Entomologist ' could cite other cases. These 

 isolated specimens are generally fine, and probably fed very near 

 the spot where captured, thus showing the existence of a partial 

 cretaceous flora ; but it seems that a specimen or two, by some 

 means, must have settled there previously, otherwise where did 

 the ova come from ? It is, of course, next to impossible to show 

 how such females have been introduced, whether for ages they 

 have just managed to exist, or whether a female has wandered 

 thither in comparatively recent times, and the progeny, finding 

 the natural food-plants, have managed to get through life in a 

 strange land and under new conditions. Newman, in his 'British 

 Butterflies' (p. 132), gives an interesting instance of Mr. Harwood's, 

 of the occurrence oi L. corydon in the High Woods, near Colchester, 

 which concludes as follows : — '* There is no chalk anywhere in 

 the district, and no marl within three or four miles of the High 

 Woods."— J. W. TuTT ; Rayleigh Villa, Blackheath, S.E. 



Ltc^na cortdon away from chalk. — On the 10th August 

 last, a friend captured this butterfly at Groombridge, on the 

 embankment close to the railway station. I was with him at the 

 time, and shortly afterwards took a specimen near the same spot. 

 Later we were collecting on Broadwater Common, a few miles 

 from Groombridge, when he captured another flying amongst 

 heather. Our three were all males, and very fresh in condition. 

 At Groombridge there is no chalk whatever, nor is the soil 

 inclined to be chalky in the least for miles around. I have never 

 noticed this butterfly in the locality before this summer, nor can 

 I find out from anyone that it has ever been taken there before. — 

 W. H. Blaber; Lindfield, Sussex, October 31, 1887. 



Dwarf forms of Lyc.enid.e. — With reference to tlie note of 

 Mr. Gush (Entom. 266), is it not more tlian probable that the 

 dwarf forms oi Lyccena corydon are the result of larvae having had 

 insufficient or not sufficiently nutritious food ? I have some 



