550 



MR. H. W. BATES ON THE HELICONIDE LEPIDOPTERA 



and markings : in tlie case of this genus, adaptation seems to be intended. The following 

 are all the cases of this complex association known to me : — 



Nicaragua. 



Heliconius Zuleika. 

 Melinsea Hezia. 

 Mechanitis, n. sp. 



New Granada. 

 Heliconius Ismenins. 

 Melinsea Messatis. 

 No Mechanitis. 



The new species mentioned are contained 

 in the British Museum Collection. 



Upper Amazons. 

 Heliconius PardaHnus. 

 Melinsea Pardalis, 



No Mechanitis. 



Heliconius Aurora. 

 Melinsea Lucifer. 

 No Mechanitis. 



Para. 

 Heliconius Sylvana. 

 Melinsea Egina. 

 No Mechanitis. 



Heliconius, n. sp. 

 Melinsea, n. sp. 

 Mechanitis Menophilus. 



East Peru and Bolivia. Heliconius Numata. 



Heliconius, n. sp. Melinsea Mneme. 



Melinsea, n. sp. „ , 



'- Pernambuco. 



Mechanitis Mothone. 



Heliconius Ethra. 



Mechanitis Nessea. 



No Mehnsea. 



Rio Janeiro. 

 Hehconius Eucrate. 

 Mechanitis Lysimnia. 

 No Melineea. 



1. Melin^a. Egina, Cramer. 



Papilio Egina, Cram. Pap. Exot. t. 191. f. D. 



Ludovica, Cram. Pap. Exot. t. 297- f. E. 



This is a common species throughout the Amazon region, and appears to be very con- 

 stant in character throughout the whole area. The c? fore legs are m a more rudnnentary 

 condition than in other species of the genus, the tibiae and tarsi forming simply an 

 elongate-conical point at the apex of the femur. It flies, in company with Mechanitis 

 Polymiiia,. Melincea Mneme, Heliconius Sylvana, and JS. Numata, slowly, amongst the 

 lower trees in thinned parts of the forest. 



2. Melin^a Mneme, Linnseus. 

 Papilio Mneme, Linn. Syst. Nat. ii. 756. n. 59. 

 , Cram. Pap. Exot. t. 190. f. C. 



Also found at aU stations throughout the Amazon region. It is constant in its specific 

 characters, with the exception of a frequent aberration in the blending of the black 



