(* sexvilla ) 
The PRESIDENT discussed Prof. Poulton’s exhibit, and also 
congratulated Mr. Marshall on the importance of his 
discoveries. 
On behalf of Dr. Knaggs, Mr. Sours exhibited series of (a) 
Dicrorhampha alpinana, Staint. nec Treit. (6 ex.) ; (6) D. 
flavidorsana, Knaggs (7 ex.) ; (c) D. questionana, Zell. (4 ex.) ; 
(d) D. petiverella, Linn. (7 ex.) ; and read the following notes 
thereon :-— 
“The specimen at the head of series 6 is the type of D. 
flavidorsana, Knaggs, taken by Mr. C. G. Barrett at Hasle- 
mere, about the year 1864, and for some time considered to be 
a variety of D. alpinana, Staint. (Manual, ii, p. 114). Sub- 
sequently Dr. Knaggs concluded that it was a distinct species 
and described and figured it in the ‘‘ Entomologist’s Annual” 
for 1867. He also published a more detailed description in 
the ‘“‘ Entomologist’s Monthly Magazine” (iii, pp. 176, 177), 
where he doubtfully referred two examples of a Dicrorampha, 
taken on the North Devon coast by Mr. E. G. Meek, to 
flavidorsana. These last are now known to be really D. 
petiverella, and are at the head of the series of that species 
exhibited this evening. 
“In 1878 Zeller described D. questionana (Stett. Ent. 
Zeit.), and it has been pointed out that the last-named is un- 
doubtedly identical with D. alpinana of Stainton’s Manual, 
though not with D. alpinana, Tr. Zeller’s name has therefore 
been adopted for the species under consideration. Although 
it is somewhat darker than either alpinana, Staint., or 
questionana, Zeller, there can be no doubt, I think, that 
flavidorsana, Knaggs, is specifically identical with them ; 
hence, as it is the earlier name, it should be adopted for the 
species. 
“T may add that D. favidorsana was not uncommon in May, 
1881, among Chrysanthemum leucanthemum and Matricaria 
inodora var. salina growing on the rocks at Woody Bay, 
North Devon (Entom., xiv, p. 159).” 
Mr. Barrett exhibited and made remarks on specimens of 
Lozopera beatricella, Wals., taken at Folkestone by Mr. W. 
Purdey and new to the locality, and showed for comparison 
series of the following allied species: LZ. francillonana, 
