248 MR. H. W. BATES ON BUTTERFLIES FROM PANAMA. [June 23, 



is closely allied to H. amarylUs (Felder) of Eastern Peru ; and both 

 are so nearly related to //. phyllis, the common species of Southern 

 Brazil, that all three might be treated as local forms of one stock. 

 No species at all nearly related to these three is found in the Ama- 

 zons plains : this confirms what has already been remarked under 

 Ithomia nephele, namely, that the line of migration of species across 

 the equator has been along the eastern slopes of the Andes. 



21. Heliconius ERATO, Linn, et auct. 



This species is widely distributed over the northern part of South 

 America. 



22. Coi.(ENis VANILLA, Linuseus. 



A very common species in the tropical and subtropical zones of 

 the New World. I have noticed that the examples from Florida are 

 much more bright in colour and more sharply defined in markings 

 than those from Tropical America. 



23. CoLOENis PHAETHUSA, Cramer. 



Also a widely distributed species ; it seems to remain constant in 

 all districts. 



24. Anartia fatima, Fabricius. 



This species is pecuHar to Central America. It seems to be com- 

 mon on the Isthmus. 



25. Pyrrhogyra tipha, Linnseus. 



The Panama example does not differ from Para ones ; the species 

 nevertheless is strongly modified in the much nearer region of the 

 Upper Amazons. 



26. Prepona amphitoe, Goddart. 



The single example does not differ from those taken by myself in 

 the Amazons region. 



• 27. Pavonia ajax, Doubleday. 



Califfo ajax, Westwood, in Dbldy. & Hewits. Gen. Diurn. Lepid. 

 pi. 56. f. 2. 



This magnificent species has been hitherto recorded only as in- 

 habiting Venezuela and Guayaquil : there is one example in this col- 

 lection. 



28. Pavonia oileus, Felder. 



Califfo oileus, Felder, Lepid. Nov. Columbise, no. 106. 



There are three examples of this species, which appears to be 

 peculiar to the regions bordering the south-wesfern part of the Gulf 

 of Mexico, it having been received from New Granada and the pro- 

 vince of Caraccas in Venezuela. 



