( ^91 ) 



Guerin (I.e.) distinguishes this race from the precediug one by the forewings 

 having five spots instead of four, and by the hindwings being devoid of the small 

 spot behind the middle median nervule mentioned in Boisduval's description of 

 P. nephelus ; the latter spot appears, however, sometimes in both races, and in the 

 number of spots composing the snliai>ical hand of the forewings my specimens from 

 Celebes (and Java) do not differ from those from Sumatra, .Malacca, and Borneo. 



The females, which are of a paler brown-black ground-colour than the 'nudes, 

 have often the buflfish white area of the upperside of the hindwings continued on 

 to the abdominal margin by means of two additional spots, which are in a female 

 from Borneo very long ; the same specimen has a white spot in the apex of the cell 

 of tlie forewings below and above; in some other /enirtZes that spot is present onlv 

 below or is wanting. In most examples the two submarginal lunules before and 

 behind the upper median nervule on the underside of the hindwings are merged 

 together at that veinlet with the respective marginal lunules; in other specimens 

 nearly all the marginal spots are joined to the submarginal ones; the submarginal 

 lunule behind the second median nervule is sometimes obsolete. 



(a*) : ? -ab. albolineatus Forbes. 



Papiliu albolineatus Forbes, Xat. W'lind. E. Arch. p. 275 (1885) (Borneo) ; Waterh., A,il. II. t. 166. 

 f. 1 (1886). 



The above-mentioned female from Borneo belongs to this aberration, which is 

 distinguished, besides by the cellular white spot of the forewings, by two clearlv 

 marked elongate white spots at the hinder angle of the forewings on the upperside. 



Hah. Malacca (8 S, o ?); Sumatra (3 c?, 2 ?); Borneo (11 cJ, 2 ¥, including 

 tjlpe of albolineatus Forbes). 



(c): P. nephelus uranus Weym. [cf, ?]. 



Piipiiiii uranus Weymer, Strlt. Eiil. Zeil. p. 271 ( J, ? ) (1885) (I. of Nias). 

 PiqiiVo nephelus var. uranus, Honrath, Berl. Ent. Zeit. XXIX. p. 275 (1886). 



The subapical macular band of the forewings i^ entirely absent, at least from the 

 upperside. 



Hah. Island of Nias (32 6 ). 



To. Papilio nubilus standing, [c?]. 

 I'ajiiliii nubilus Staudiuger, Iris VII. p. 344 (1895) (Brunei, N. Borneo). 



Dr. Staudinger kindly lent me the type of this species, and, though mv first 

 impression was that the unique specimen might be a sport of P. nephelus. I now 

 think that it stands better separate from P. nephelus Boisd. as a species, till further 

 researches show that it is not di.stinct. 



The band on the upperside of the hindwings is similar in shape to that of 

 P. hipponoiis Feld. 



Hah. Brunei, North Borneo (1 J in coll. Staudinger). 



Tt). Papilio chaon Westw. \_S . ?]. 



Papilin clwrni Westwood, Arc. Ent. II. p. 97. t. 72. f. 1. 1* (J) (1845) (Assam) : Doubl. Westw. 

 & Hew., Gen. Diurn. hep. I. p. 11. n. 55 (1846) (Nepaul ; .As.<iam) : Gray, Cat. l.f),. Im. B. M. 

 I. p. 18. n. 70 (1852) (N. India) ; id., List Lep. Ins. /I. .1/, I. p. 23. n. 80 (1856) (Sylhct) : 

 Horsf. & Moore, Cat. Lqi. Jus. .Uus. E. J. C. I. p. 102. n. 206 (1857) (Assam : Sikkim : var. 

 "Borneo" Inc. err. aid P. nc/>hclux saturnus?) ; Feld., Verh. :. b. Gcs. Wien p. 320. n. 410. & 

 p. 367. n. 242 (1864) (Ind. sept. ; " Malaccii, Hornco" loc. err.) : Moore, P. Z. .'•'. p. 757 (1865) 

 (Beng-al) ; Di-uce, P. Z. S. p. 109. n. 5 (1874) (Siam) ; Oberth., Et. iVEnt. IV. p. 45. n. 67 



