80 MR. A. G. BUTLER ON APORIA HIPPIA. [Jail. 19, 



ribus albidis ; rostro et pedibus nigricantibus . Long. tot. 



in. 20-5, rostri, 2, alee 10-6, caudce 4, tarsi 1-4. 

 2 . capite et collo mari similibus, nee gula rufescente : dorso 



brunneo, plumis alba et castaneo arete marginatis : alls sicut 



in mare coloratis : secundariis viridescentibus albo terminatis : 



ccetera ut in mare. 

 If this bird be correctly discriminated, it adds a fourth to the three 

 recognized species oi Dafila, the others being D. acuta, extending over 

 the vf hole northern hemisphere ; B. spinicauda, and D. bahamensis, 

 both neotropical species. 



4. Note on Aporia hippia. By A. G. Butler., F.L.S., 

 F.Z.S., &c. 



[Eeceived January 18, 1886.] 



The British Museum has received specimens of the imago, larva, 

 and pupa oi Aporia hippia, reared in the Society's Gardens under 

 the care of Mr. A. Thomson during the past season (see his report, 

 above, p. 3). I beg leave to offer a few remarks on them, 



Aporia hippia. 



Pieris hippia, Bremer, Bull, de I'Acad, St. Pe'tersb. iii. p. 464 

 (1861); Lep. Ost-Sibiriens, p. 7, n. 12, pi. 3. fig. 1 (1864). 



Leuconcea cratcegioides, Lucas, Ann. See. Ent. France, 4°"^ ser. 

 t. 5, p. 503, pi. 11. fig. 11 (1865). 



Although, as appears from the above, this species has been twice 

 figured, neither figure can be called a characteristic one ; both are 

 too pale and fail to show the grey expansion at the extremity of the 

 nervures ; nothing is said of tlie earlier stages in either Bremer's or 

 Lucas's descriptions, indeed the latter author evidently imagined it to 

 be a " pretty variety " of ^. cratcecji, although he described it as if 

 a distinct species ; he did not, however, call it " Leuconcea cratcegi, 

 var. crattegoides" {sic) as quoted by Kirby. 



Staudinger failed to quote the original description ; but this sort 

 of omission is of frequent occurrence in his Catalogue, and leads to 

 errors innumerable ; thus, in the case of Chrijsophanus dido of 

 Gerhaidt's ' Monograph of Lycsenidse,' Staudinger (wlio appears 

 entirely to have overlooked the work) quoted Ilerrich-Schiitfer's 

 figure of the male " asabinus, H. S. 527. 8" only, and subsequently 

 Kirby, in his Catalogue, referred the figure of the female to C. chry- 

 seis, and regarded it as a variety of the C. hippothoe of Linnaeus. 



To return, however, to A. hippia, it is undoul)tedly nearly allied 

 to A. cratcegi, but is as certainly distinct ; the blackish veins and 

 yellow under-surface of the secondaries and apex of primaries readily 

 serve to distinguish it. 



Among the specimens in the Museum, all of them reared and 

 presented by the Society, is a female which shows an interesting 

 aberration of vein-structure, the radial vein of the right-hand hind 



