1889.] 



THE YOUNG NATURALIST. 



225 



new matter or datum to work on, matters have remained in the same 

 position as before. Personally, with about the same data as Mr. 

 South has to go on, viz. — the breeding of an odd specimen or two of 

 each species — a bred series of Mr. Sang's own specimens of ochrodactyla, 

 and a long series of principally caught specimens of bertrami, I should 

 be inclined to agree with those who believe in the identity of the two 

 species ; but in the face of the intimate knowledge of the late Mr. 

 Sang and Mr. Porritt of both species, and their decided opinions as 

 to the distinctness of the two species, I consider it advisable, for the 

 present, at least, to consider the species distinct, I shall, therefore, 

 deal with them as — 



1. ochrodactyla, Hb. 



2. bertrami, Rossi. 



(To be continued.) 



Note on Deilephila Galii. 



By W. H. TUGWELL. 



I had no intention of again intruding on the pages of the Young 

 Naturalist any further remarks on this subject, but Mr. W. E. Sharp, in 

 last month's issue, pp. 203-6, attributes to me views, quite at variance 

 with what I have set forth (pp. 113-5). Mr. Sharp states that I hold 

 that the St. Margaret's Bay imagines are from Continental origin, 

 but that the Cheshire, Irish, and Scotch perfect insects are, or may 

 be, from locally bred parents. Now that to my mind would be ridicu- 

 lous. What I state and fully believe is, that all the imagines of 1888, 

 and parents of all the numerous larvae found in England last year, 

 were in all probability from a continental origin, and my reason for 

 stating that is, that there has never yet been bred in England, from Eng- 

 lish larvce specimens of D. galii that are anything like as large and 

 robust as those caught specimens. Not only the 1889 bred examples, 

 but those bred from the 1859 larvae, or the 1870 larvae, these are of 

 the same type, small and undersized insects when compared with 

 caught examples. I have in my cabinet specimens of Galii bred from 

 Deal, in 1859, by the late Dr. Boswell (Syme) ; from the Wallasey 

 sand hills, bred in 1870 ; and have bred 112 from Deal from the 1888 

 larvae. I much doubt if five per cent, of the females were robust 

 enough to have produced fertile ova, not a single one attempted to 

 deposit a single ovum. This to my mind settles the question, for it is 



