550 



MR. H. W. BATES ON THE HELICONIDE LEPIDOPTERA 



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

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



Nicaragua. 

 Ileliconius Zuhnka. 

 Molinfea Ilezia. 

 Mechanitis, n. sj). 



New Granada. 

 Ileliconius Ismenius. 

 Melina^a Mcssatis. 

 No Mechanitis. 



The new species mentioned are contained 

 in the British Museum Collection. 



Upper Amazons. 

 Heliconius Pardalinus. 

 Melinsea Pardalis. 



No Mechanitis. 



Ileliconius Aurora. 

 Meliutea Lucifer. 

 No jNIechanitis. 



Para. 



Ileliconius, n. sp. Heliconius Sylvana. 



Melin;ea, n. sp. Melinsea Egina. 

 Mechanitis Meuophilus. No JMechanitis. 



East Peru and Bolivia. Helicouius Numata. 



Heliconius, n. sp. Melincea Mneme. 



Mclintea, n. sp. 



Mechanitis Mothonc. 



Heliconius Ethra. 



Mechanitis Nesiea. 



No Meliniua. 



Rio Janeiro. 

 Heliconius E aerate. 

 Mechanitis Lysimnia. 

 No Mcliniva. 



1 . ^IklinjKA Egina, Cramer. 



PapUio Egma, Cram. Pap. Exot. t. 191. 1'. 1). 

 • Luduvica, Cram. Pap. Exot. t. 2!t7. f. E. 



'IMiis is n ('ommon sjiecies throughout t he Amazon region, and appears to he very con- 

 slant in character throughout the whole area. The cJ fore legs arc in a more rudimentary 

 corulition than in other species of the genus, the tihire and tarsi forming simply an 

 eloiigatiM'onical point at the apex of the femur. It tlies, in company with 3Icchanilis 

 PoJilinn'id, l\[cVni<C(i 3lii<'me, Jlclicoiiias Si/liuitta, and //. N/imata, slowly, amongst the 

 lower trees in thinned parts of the forest. 



2. Melin^ea Mxe.me, Linnreus. 

 P(i/ti/io Mncme, Linn. Syst. Nat. ii. ^Sd. n. 59. 

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



.Vlso found at till staticms throughout theA\nazon region. It is constant in its specific 

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



