OF THE MALAYAN REGION. 49 



Bemarh. — As has been already noticed (p. 22), the female of this species closely 

 resembles P. Liris ?, in company with which it was captm'ed. 



g. Selenus group, 



52. Papelio Seveuus, Cramer. 



P. Severus, Cr. Pap. Ex. t. 227- f. A, B ( J), t. 278. f. A, B ( § ) ; Boisd. Sp. Gea. Lep. p. 212. 

 Hab. Bouru, Ceram, Amboyna, Gilolo, Batchian, Aru Isl. [Wall.). 



Bemarhs. — This species exhibits a large amount of simple variation, in the presence 

 or absence of a pale patch on the uppers, in the brown submarginal marks on the lower 

 wings, in the form and extent of the yellow band, and in the size of the specimens. The 

 most extreme forms, as well as the intermediate ones, are often found in one locality and 

 in company with each other, indicating that over the above range continual intermixture 

 probably takes place, and thus prevents any one form from becoming specialized in a 

 restricted area. The two following modifications of it, however, have acquired perfect 

 stability, each in a large island situated on the extreme limits of the species. I therefore 

 consider them to be distinct, though the actual differences are but small. 



53. Papilio Pertinax, n. s. Tab. V. fig. ^{s). 



Upper side : anterior wings rather more elongate and pointed than in P. Severus, du.sky 

 brown, with faint longitudinal rows of yellow scales in the cell, and with rather denser 

 scales between the nervures beyond it ; these are condensed into a narrow yellowish band 

 parallel to the outer margin, and rather nearer to the ceU than to it. Hind wings black, 

 with three yellowish white subquadrate spots (the upper one smallest) situate between 

 the outer angle and the discoidal nervule ; beyond these and continued to the anal angle 

 are a few very faint and minute groups of scales. 



Zander side as above, but the transverse band on the upper wings is whiter, and on the 

 lower wings are seven submarginal brownish-yellow lunules, the middle ones least marked, 

 and those at the outer and anal angles having above them a very small group of minute 

 lilue scales. 



The female is paler-coloured, with the markings rather more diffused, and has on 

 the under side an imperfect ocellus at the anal angle, a row of faint brown lunules 

 extending to the three white spots, and two irregular lunules of blue atoms below those 

 next the abdominal margin. 



Expanse of wings, 6 , 4;^ inches ; ? , 5 inches. 



Hab. Macassar (Celebes) [Wall.). 



Bemarh. — This species was rather abundant near Macassar, in Avoody places, and was 

 very constant in its markings and general aspect. 



54. Papilio albinus, n. s. Tab. V. fig. 5 (j). 



Wings broader than in Pj Severus, costa less arched, tail smaller, and the caudal mar- 

 gin less produced. 



Tipper side broAvn-black ; anterior wings with very faint horizontal lines of yello-\vish 

 VOL. XXV. H 



