26 MR. A. G. BUTLER ON THE GENUS PIERIS. [Jan. 16, 



to some cause or another, it was not published, and it is now 

 too late to do so. Directly I read Mr. von Homeyer's description 

 of Phyllopneuste brehmi, I wrote to Mr. Brooks telling him that 

 his bird had been, so far as I could judge, described ; and he sent 

 me his specimen, which I now exhibit, and which agrees precisely 

 with Mr. von Homeyer's description. 



" I beg also to lay before the Society another specimen of Phyl- 

 lopneuste brehmi, procured near Constantinople by Mr. Robson, as 

 also specimens of our common Chiffchaff (P. rufa) from Turkey, 

 Italy, and Great Britain, in order to show the distinctness of the 

 present species. When sending the above specimen of P. brehmi, 

 Mr. Robson wrote to me as follows : — ' The Chiffchaff here, I fully 

 believe, is different from the English bird ; at least I am certain the 

 cry of the female is different. I suppose they build on the ground ; 

 but I have found no nests, though 1 have anxiously looked for them. 

 I have shot the bird when ready to lay, and have seen old birds 

 feeding their young.' " 



The following papers were read : — 



1. A Synonymic List of the Species formerly included in the 

 Genus Pieris ; with all others described since the Sub- 

 division of the Group by recent Authors. By A. G. 

 Butler, F.L.S., E.Z.S., &c. 



[Received December 12, 1871.] 



I have, for the last two or three years, devoted much time to the 

 determination of the genera and species of the subfamily Pierince ; 

 and in an essay published in the third part of the ' Cistula Entomo- 

 logical I investigated the structural characters of this group, sepa- 

 rating it, by the neuration of the wings, form of antennae and palpi, 

 with other minor characters, into forty-eight genera : since the pub- 

 lication of this paper I have found it necessary to suppress one genus 

 (Heliochroma), as I discovered that it was founded upon an abnormal 

 species of Hesperocharis ; I have also added two genera— Larino- 

 poda (Trans. Ent. Soc. p. 1/2, Feb. 1871) and Scalidoneura (Proc. 

 Zool. Soc. p. 250 (1871). 



In the third part of my ' Lepidoptera Exotica ' I commenced a 

 revision of the species of the subfamily, with an illustrated mono- 

 graph of the genus Callidryas, a paper now rather more than half 

 finished ; in March 18/11 gave a list of the species of Ixias in the 

 'Proceedings' of this Society, pp. 252-254 ; and in June a list of 

 the species formerly included in Terias, pp. 526-54 1 . I now propose 

 to give a complete list of the species referred by authors to the old 

 genus Pieris. 



The genus Pieris, properly speaking, should perhaps have no 

 place in zoological nomenclature ; for if Schrank ever had a type 

 for it, he did not fix it, and the first species that he mentions is Par- 

 nassius apollo. Latreille, I believe, subsequently fixed the type as 



