HEWETT : SPILOSOMA LUBRICIPEDA AND ITS VARIETIES. 361 
peculiar to them, viz., that the hind-wings are more thickly marked 
in the female than are the York forms. 
Mr. W. H. Fletcher, writing of the variation of S. /ubricipeda 
from Hull, says:—‘From the Hull pupa of .S. /ubricipeda I bred 
some strongly-marked specimens in 1893. Luckily I had a pairing 
of two of them, and have bred this year several moths of the 
Jasciata type, and the rest of the batch with well-pronounced 
tendencies towards it. From two of the best marked specimens 
I have again obtained pupz.’ 
Mr. G. T. Porritt by crossing a female var. fasciata with a male 
var. radiata produced specimens of radiata forms nearly approaching 
Jasciata and variety eboraci, thus showing that heredity holds good in 
this species, and Mr. Tugwell suggests that the York city form 
resulted from just this kind of cross, and after fully considering the 
pros and cons of the theory, I think it to be the only satisfactory 
explanation to be arrived at. 
The Rev. C. D. Ash, B.A., of Skipwith, near Selby, informs me 
‘that in 1880 he took on the sandhills, a little north of Mablethorpe, 
a male S. /ubricipeda almost identical in markings with variety 
eboract. The ground colour was very pale, and the black streaks on 
the costa and inner margin were not so pronounced.’ ‘At Saxby, 
Lincolnshire, in 1893 he only found the type. 
e Rev. G. H. Raynor, of Panton Rectory, Wragby, informs 
me ‘that he has never taken any varieties of S. /ubricipeda in 
Lincolnshire.’ 
Mr. Allan Nesbitt, of Llandago, —— says that S. /udri- 
cipeda * dag little with him.’ 
Mr. D. Chittenden, of Ashford, Kent, says ‘that specimens of 
S. Inbriciteda, which he has bred from Ashford and neighbourhood, 
are very much lighter than some selected examples which I sent him.’ 
Referring to Mr. Riches’ communication to Mr. South (see 
Entomologist, December 1893, page 347) that he had never bred 
a variety or even seen the species in this locality—viz., Hornsey. 
Dr. Riding, M.D., Buckerel Lodge, Honiton, in a letter to me 
referring to some selected examples of .S. /uéricipeda which I had sent 
him, and which though much darker than the type were not eboracz, says 
‘that three varieties which he possesses, and which were obtained by 
him about 1870 on Hampstead Heath, are certainly more marked 
than any of those I had sent him,’ and on Dr. Riding pointing this 
out to Mr. South, that gentleman stated ‘he was in the habit of taking 
as strongly marked forms as Dr. Riding in his (Mr. South’s) garden 
at St. John’s Wood, London,’ at the same time Dr. Riding says 
that the Honiton specimens ‘ were less marked than those I had sent 
Dec. 1894. 
