101 
PLATE XXVII. 
DESCRIPTION OF A NEW INDIAN SPECIES OF PAPILIO. 
Tue Papilio Paris of Linnzeus may be considered as the type of 
a small group of Asiatic species of Papilio, distinguished by having 
the upper surface of the wings thickly irrorated with golden green 
atoms, the hind wings being marked by a large patch of shining 
blue or green near the outer angle. The species of this little section 
form portion of Boisduval’s ‘‘ Groupe IV.” which also includes 
P. Ulysses, P. Peranthus, and P. Palinurus and its allies. 
P. Paris, Arjuna, and Polyctor, belong to the little group first 
mentioned, as well as several other species of equal rank which I 
have seen in the collections of the East India House, British 
Museum, &c. These species appear to be respectively confined to 
distinet districts, and in the opimion of some authors may be 
deemed geographical sub-species—a name involving considerations 
of great difficulty. 
The species represented in the accompanying plate is certainly 
the most splendid of all these butterflies. It is indeed absolutely 
impossible to give a correct idea, by colouring, of the beauty of its 
hues, and especially of the varying lustre of the blue patch on the 
hind wings ; some of the blood-red lunules have a beautiful purplish 
tinge, produced by blue atoms scattered over them, whilst others are 
powdered with the golden-green spangles; in fact, the only correct 
idea of the species can be obtained by calling to mind the showers 
of coloured fire on a Vauxhall night. 
PAPILIO ARCTURUS, W., Pl. 27. 
P. alis nigris, viridi-atomosis ; posticis obtuse dentatis et late caudatis ; anticis striga interrupta 
macularum ex atomis viridibus formata, ex angulo postico ad partem dimidiam alarum 
ductaé et cum margine subparallelA; posticis supra, plaga magnitudine mediocri, versus 
angulum externum lete ceruled strigaque ejusdem coloris ex ejusapicem ad marginem 
alarum extensa, lunulis tribus sanguineis, maculaque ocellari (medio nigro) et linea trans- 
versa sanguineis ad angulum analem, illa cum striga curvata viridi-atomosa coronata ; alis 
subtus nigricantibus basi albido atomosis, anticis striga lata subapicali cinerea, venis lineis- 
que intermediis nigris; posticis lunulis 5 rubro-fulvis (czruleo pulverosis) maculisque 
duabus magnis rubro-fulvis (medio nigris et lunula supera cerulea ornatis) ad angulum 
analem. 
Expans. alar. antic. unc. 5. 
{nhabits the Himalayan mountains, Sylhet, and the adjacent parts of India. 
Mus. Parry, Hope, Brit. &e. 
