PAPILIO. 



549 



from r. lielenus are not of the slightest importance, and do not serve to 

 separate Japanese specimens from Chinese or Indian examples. The form to 

 whicli Butler has given the fantastical name oi niccouicolens was said to have 

 been received from Nikko. Pryer, however, states that he never met Avith 

 this insect in the main island of Japan, but only in the south. I found the 

 species commonly at Nagasaki and in the province of Higo and Satsuma in 

 May ; I also met with it at Hong-Kong, Foochau, and Ningpo. In Central 

 and Western China it appears to be a rare species, and I have only received 

 it from Ichang and Omei-shan. 



Mr. Elwes (Trans. Ent. Soc. 18S8, p. 429} states that P. helenus is one 

 of the commonest species of Pa])ilio in Sikkim and occurs at all elevations up 

 to GOOO feet, but is most numerous in the low valleys from April to October. 



A widely ranging species, occurring in many parts of India ; also in 

 Ceylon, Malay Peninsula, Penang, Perak, Malacca, Java, Borneo, Philippines, 

 Celebes, Cachar, China, and Japan. 



Papilio rhetenor. 



Papilio rhetenor, Westwood, Arc. Ent. i. p. 59, pi. xvi. figs. 1, 1 a, ^ (1842). 

 Papilio icarius, Westwood, Cab. Orient. Ent. p. 5, pi. ii. ? (1848). 

 Papilio [Panosmiopsis, subg. nov.) rhttmor, Wood-Mason & de Niceville, Journ. Asiat. 

 Soc. Beng. 188G, p. 374. 



" Alis supra nigro-C5-aneo nitidis, posticis oculo ineompleto ad angulum ani albo supra rufo ; 

 subtus anticis griseis nigro striatis, basi sauguinois ; posticis aterrimis margine ouini anali 

 late sanguineo nigro maculato angulo ani albo irroi'ato, Expana. alar. unc. 5|. 



" This tine species is a native of Assam. On the upperside the wings are of a black colour, tinged 

 witli very dark blue, especially towards the outer angle of the hind ■vvings, being there increased 

 by a number of minute, slender, elongated, blue scales. At the anal angle is an incomplete 

 eye, formed of a black spot, partially surrounded on the inside with a whitish crescent, the 

 upper part of which is tinged with sanguineous. The fore wings beneath are of a grey colour, 

 darker towards the base and along the outer edge, with the veins and intermediate longitudinal 

 fasciie black, the base being blood-red, which colour extends broadly along the whole of the 

 anal margin of the hind wings (except in the anal fold), marked with a black spot at the 

 anal angle, which is much irroiated with white. The sanguineous colour in the next area of 

 the wing is marked with three black spots, the middle one being the largest. The head and 

 neck above are spotted with dirty white, and the antenna and legs are black. The abdomen 

 is wanting in the unique specimen now before me. 



" Most nearly allied to the Chinese P. protenor, but differs in the anal eye, in the extent of the 

 sanguineous colour along the whole anal margin of the hind wings, and in wanting the spots 

 along the hind margin of the same wings." ( ^\l:s>.wood, L c.) 



The female, described by West wood under the name icariws, differs from the male in having the 



