32 

 LEPIDOPTERA. 



tubercle behind the bead. The cbrysalis is thick, curved and armed on the back of 

 each of the three intermediate abdominal segments with a pair of conical points. 



Dr. Horsfield considers this insect as the type of the last of the three great sec- 

 tions of the genus Papilio having the antennas with obscure annuli, (vide synopt. table). 

 Mr. Swainsou gave it as a subgenus named Amphrisius, confounding the two species 

 Heliacon and Amphrisius together, and applying the latter name as that of the genus. 

 But as Priamus and its allies are the types of the same group, it would be absurd, even 

 were it not inconvenient, to retain this genera name. I have therefore employed 

 M. BoisduvaPs name of Ornithoptera, altering its termination, however, to make it 

 agree with the sex of the old genus Papilio, from which it has been separated. 



PAPILIO IDJJUS. 



Plate XIX. fig. 2. 



Species : Papilio Id^eus : alls nigris, anticis fascia abbreviata flava, posticis dentatis, macula 

 palmata trifida punctisque sanguineis, ernarginaturis albidis. Expans. alar. 

 unc. i\. 

 Papilio : with black wings, the anterior with an abbreviated yellow band, the pos- 

 terior dentated, with a palmated mark composed of three red united spots, and 

 several other red spots, the emarginations yellowish. Expanse of the wings 

 4J inches. 



Syn. Fabricius, Ent. Syst. III. 1. p. 16. Enc. Meth. 9. 33. Boisduval Hist. Nat. Lepid. 



p. 299. 

 Habitat. Madras, Fabricius. 



This species was originally described from the collection of Mr. Drury and 

 Mr. Jones's drawings, which evidently supplied Mr. Donovan with the present figure. 

 The French Entomologists are only acquainted with the species through the works 

 of Fabricius and Donovan. M. Boisduval is of opinion, that from the facies of this 

 species it is rather an inhabitant of South America than the East Indies. 



PAPILIO ASTYANAX. 



Plate XX. fig. 1. 



Species. Papilio Astyanax : alis nigris concoloribus, anticis fascia sesquialtera alba striata, 



posticis dentatis, ecaudatis, macula discoidali palmate, lunulisque sex submar- 



ginalibus sanguineis. Expans. alar. unc. 4. 



Papilio : with all the wings black, the anterior having a broad oblique whitish 



band, striped with black beyond the middle, united to another shorter, which 



