228 [September, 



It will be seen at once that of the twenty-nine specimens 

 enumerated above as having been captured or seen within the limits 

 of the British (and Channel) Islands, every one has occurred in a 

 maritime county, and with only two or three exceptions, on the coast 

 itself. Cornwall heads the list with nine records, the Isle of Wight 

 and Sussex have five each, Dorset three, Hants and South Wales two, 

 and Devon, Kent, and Guernsey one apiece. The absence of any records 

 from Ireland is noteworthy, especially when the relatively large number 

 of captures in the western parts of England is taken into account, but 

 this may well be due to the lack of observers on the Irish coast. 



III. The Continent or Europe. 



The number of specimens of Danaida plexijipus that have reached 

 the shores of Continental Europe is unaccountably small in comparison 

 with the fairly numerous occurrences of the butterfly in Britain. I 

 am unable to add any further records to those of its capture by 

 M. Grassal, in La Vendee, Western France, in September, 1897 

 (Baret, Pet. Nouv. Entom., II, pp. 253-4) ; my own note in this 

 Magazine (vol. XXIII, p. 162), on the specimen taken by Lieut. C. H. 

 Cochran, at Gibraltar, on October 24th, 1886, almost on the day of 

 my arrival there from England ; and the record by the late Mr. H. 

 Goss (Entom., vol. XX, p. 106) of the capture by Mr. Geo. D. Tait of 

 a $ specimen, on September 29th, 1886, in his garden at Oporto. 



The Eange op Danaida peexippus in the New World. 



Before proceeding to enquire into the agencies that have been the 

 cause of the spread of our butterfly to the remote shores it has now 

 reached, it is desirable to indicate the limits of its distribution through- 

 out the two Americas. In this connection I follow Scudcler, Poulton, 

 and other recent authors in regarding D. erippus, Cram., the 

 predominant form in the eastern and southern portions of South 

 America, as a geographical race of J), plexvpptis, though it is separated 

 as a distinct species by Haensch (Seitz, Macro-Lep., America, p. 113). 



Throughout the whole of the warmer parts of North America we 

 find the butterfly generally distributed and often very abundant. Its 

 range extends southward through the West Indies and Central America 

 beyond the Isthmus of Panama, and northward into the Dominion of 

 Canada as far as Moose Fort at the south end of Hudson's Bay in 

 lat. 50° 20' N. (J. Jenner Weir, Entom., Vol. XVIII, p. 51), and 

 according to Dr. Scudder (I.e., p. 728), still further north to the 

 Athabasca country in about lat. 58°. It is, however, more than probable 



