NEW INDO-MALAYAN BUTTERFLIES. 345 



P. arjuna, of which species I possess specimens from Sumatra and 

 Java, but it has absolutely no trace of a discal light green fascia 

 which fascia is barely traceable in P. arjuna, and is prominent in 

 P, parts and P. tamilana. On the underside of the hindwing the 

 red markings are also larger and more prominent. It is a much 

 larger insect than P. arjuna, which occurs with it. 



I am unable to follow Mr. A. R. Wallace's remarks on P. arjuna, 

 in Trans. Linn. Soc, London, vol, xxv, p. 46, n. 42 (1865), as my 

 Sumatra specimens agree absolutely with Javan ones, nor do these 

 remarks at all apply to P. discoidia. 



Described from a single example sent to me by Dr. L. Martin, 

 of Deli, Sumatra. 



18. PAPILIO (Paranticopsis) MACAREUS, Godart, PI. I, 

 Fig. 1, $. 



p. macareus, Godart, Enc. M^th., vol. ix, p. 76, n. 144 (1819) ; id., Horsfield, Cat. 

 Lep. Mus. E. I. C, pi. v, fig. 1 (1829) ; id., Elwes, Trans. Ent. Soc. Lond., 1888, 

 p. 431, n. 421. 



I have figured a very remarkable male aberration or " sport" of 

 this species, which was obtained by Mr. F. A. Moller's native 

 collectors in the spring of 1 392 in Sikkim. On the upperside of 

 both wings the normal marginal series of spots — nine rounded ones 

 in the forewing ; one small and rounded at the anal angle, then four 

 lunulated spots, and lastly, one elongated spot, in the hindwing — 

 are entirely wanting, the discal series of elongated streaks being so 

 extended and prolonged as to include them ; and in the forewing 

 the greenish-white markings in the discoidal cell consist of a 

 patch at the base, and a tripartite patch at the middle, instead of 

 having a small spot at the base, then three very outwardly-obliquely 

 placed lines across the middle, and two spots at the end of the cell 

 (sometimes conjoined) as is found in P. macareus ; the four rounded 

 spots immediately beyond the end of the cell in normal P. macareus 

 are in the specimen now figured joined to the short streaks beyond. 

 On the underside the markings are very much the same as above, 

 but are larger and more suflFused. 



Family HESPERIID^. 



19. ISMENB FERGUSONII, n. sp., PI. J, Fig. 6, S . 

 Habitat : South India. 

 Expanse : d , 2*2 to 2-5 ;, 2-5. ? 



