320 NoTiTATEs Zoological XXVI. 1919 



A GEOGRAPHICAL TABLE TO SHOW THE DISTRIBUTION 

 OF THE AMERICAN PAPILIOS. 



By W. J. KAYE, F.E.S. 



THE table of papilios arranged geographically now published will draw 

 attention to blanks and discrepancies in their distribution which call for 

 further light. The table is based on the " Revision of the American Papilios." 

 by Rothschild and Jordan, in Novitates Zoologicae, Vol. XIII. (1906). It 

 was found to be impossible to make the table continuous from end to end ; 

 and although the utmost has been done to bring contiguous districts together 

 for comparison, breaks were inevitable. I have thought it best to continue 

 the United States down through Central America ; Colombia ; Ecuador ; 

 Peru : Bolivia ; N. Argentina ; crossing to Paraguay ; N.E. Argentina ; E.G. 

 Argentina ; Uruguay ; S. Brazil, Rio Grande ; S. Brazil, Sta Catharina ; 

 (S. BrazO. Parana ; S. Brazil, Sao Paulo ; S. Brazil, Rio ; C. Brazil, Goyaz and 

 ;\[atto Grosso ; and N.E. Brazil, Bahia and Ceara. Though all this district is 

 continuous, yet Goyaz and Matto Grosso do not fit in well, as N.E. Brazil is in 

 many ways more like Rio, and it would be better to follow the maritime Brazilian 

 States northwards. However, Goyaz and Matto Grosso must be fitted some- 

 where, but we are conscious of the impossibility of placing each area in a good 

 position for comparison. A definite break is made at N.E. Brazil, as the Amazonian 

 delta contains a different fauna, and also it is possible to take another larger 

 area under review which is more or less continuous. For this purpose a start 

 is made with Florida, continuing with the Bahamas, Cuba, Haiti. Jamaica, 

 Grand Cayman, Porto Rico, Antigua, Guadeloupe, Dominica, Martinique, St. 

 Lucia, St. Vincent, Grenada, Tobago, Trinidad, Venezuela North, Venezuela 

 Orinoco, British Guiana, Dutch Guiana, French Guiana, Lower Amazon, Middle 

 Amazon, and Upper Amazon. Then, as a region sharply divided olT, the whole 

 of the Pacific slope west of the Andes is treated separately, taking W. Colombia, 

 VV. Ecuador, W. Peru, and N.W. Chile. No Papilio occurs in the south-west of 

 Chile, and only one — archidamas — in North Cliile. The aridity of Western Peru 

 and N. Cliile has caused a lack of vegetation with an inevitable dearth of lepidop- 

 tera. In Western Ecuador the whole aspect is changed, due to the diversion of 

 the cold Antarctic Ocean current out to the Galai^agos Island, where again 

 the aridity is greatly in evidence. With a rich vegetation Western Ecuador 

 has quite a rich fauna, and we find no less than II species of Papilio. Western 

 Colombia, also, is well represented with 13 species. One must remember, 

 liowever, that Colombia stretches through more degrees of latitude and is a much 

 larger country than Ecuador. In nearly every case the subspecies found on 

 the west coast of whatever country are different to those on the eastern slope 

 of the Andes. Western Ecuador even produces a species—epenetus — that is 

 confined to the west. A comparison of these regions is appended : 



Species. Species. 



Colombia (West Coast) . .13 Peru (West Coast) . . .1? 



Ecuador „ . . .11 N.Chile „ ... 1 



