OF THE AMAZON VALLEY. 517 



3. Danais Ekesimus, Cramer. 



Papilio Eresimus, Cram. Pap. Exot. t. 175. f. G, H. 



This is the common species in the interior of the country. It is very abundant at Ega, 

 on the Upper Amazons, where D. Erippus did not occur. 



B. Danaoed Heliconld^ 



[Heliconidce, part, of authors). 



Genus Lycorea, Doubleday. 

 Doubleday and Hewitson, Gen. Diurn. Lepid. p. 107. 

 The six described species of this genus differ from each other by such slight characters 

 (small differences in colours, and in the arrangement of the pattern on the wings, being 

 the only points which distinguish them), that they might fairly be considered as varieties 

 of one only. I have not yet seen specimens, however, which connect all the forms 

 together, and these are mostly the products of different geographical areas ; it will be 

 more convenient therefore to treat them independently, than to combine them under the 

 head of one polymorphic species. A good collection of specimens from all parts of the 

 area of distribution of the genus would here be very instructive. We should then be alile 

 to ascertain the metropolis and proljable area of origination of each of the various forms. 

 I have seen only L. Salia in collections from S.E. Brazil. L. atergatis is peculiar to 

 Columbia and the Upper Amazon region ; but a striking variety of it prevails over the. 

 type in this last-mentioned district, and another, L. Pales (Felder), occurs on the E-io 

 Negro. L. Cleobcea (which is scarcely more different from L. atergatis than the just- 

 mentioned L. atergatis, var., is from its type) is reputed to occur in the West India Islands. 

 At Para three forms, including L. Salia, are found together ; and here some intermediate 

 varieties occur, making it probable that the segregation of the quasi-species is not in 

 that district complete. 



1. Lycorea Ceres, Cramer. 



Papilio Ceres, Cramer, Pap. Exot. t. 90. f. A. 



This species occurs in the Amazon region at Para, and on the banks of the Tapajos. 

 It is also an inhabitant of Surinam. Cramer's figure is made from an example rather 

 aberrant in the markings of the hind wings ; otherwise it agrees very well with the 

 specimens I have before me. I have a variety from Para which connects this form with 

 L. Halia. 



2. Lycorea Pasinuntia, Cramer. 



Papilo Pasinuntia, Cram. Pap. Exot. t. 316, A, B, C. 



This form occurs throughout the whole of the Amazon region, from 48° to 70° W. 

 long. The extreme western examples, found at St. Paulo on the Upper Amazons, 

 show a change of colour in the yellow irregular belt of the fore wing, which has acquired 

 the same orange-tawny shade as the rest of the wing. The same substitution of colour 



