ORNITHOPTERA. 



265 



pupa is yellowish. Another and very similar species of this 

 group is O. rhadamanihus, Boisduval, which is fotind all over 

 India, South China, and Indo-China. For this species and its 

 allies, the name Fachlioptera, Reakirt, may be retained, if they 

 are generically distinct from Ornithoptera, the type of which is 

 O. Helena (Linn.). Other yellow species, such as O. ruficollis, 

 Butler, from the Malay Peninsula, have a red collar ; others, 

 like O. amphrysus (Cramer), have the fore-wings more or less 



pupa. 



rayed with yellow in the males ; and the male of one species, 

 O. magellanus^ Felder, from the Philippines, exhibits a won- 

 derful iridescence of the most delicate pale silvery blue or 

 green over the golden-yellow hind-wings. This is quite unique 

 in the group, though something resembling it is seen in some 

 South American Butterflies belonging to the genus Priamides 

 in the Equitin^ and to the genus Enselasia in the Lemoniidae. 

 Even Morpho sulkowskyi will not compare with Ornithoptera 

 wagellanus for metallic beauty. 



