468 RHOPALOCERA MALAYAN A. 



Subgen. PAPILIO {antm, p. 332).— MEMNON Group {a„tm, p. 339). 



29. Papilio sycorax. (Tab. XLIL, fig. 10.) 



I'li/iilid Si/coni.r, Smith, Eut. Month. Mag. vol. xxi. p. 247 (1885). 



Papilio Eijertoni, Dist. Aim. & Mag. Nat. Hist. ser. 5, vol. xvii. p. 251 (1886). 



Anterior wings above blackish, the uervures and nervules margined with dull obscure greyish : 

 posterior wings above bluish-grey, the cell and the area from costal margin to lower subcostal nervule 

 almost totally dark bluish-black and with a doulile series of spots of the same colour placed between 

 the nervules, the uppermost and discal series smallest, consisting of four spots, of which the largest 

 is subquadrate and placed between the lower subcostal and the discoidal nervules ; the outer series 

 marginal and larger than the discal spots ; abdominal area dark bluish-grey and with two small spots of 

 the same colour placed beneath cell and divided liy the second median nervule ; fringe very narrowlv 

 ochraceous. Anterior wings beneath as above, but with the greyish markings paler and brighter and with 

 oblique greyish streaks in cell ; posterior wings paler and brighter than above ; the blackish basal area 

 continued inwardly to submedian nervure. Body above with the head and anterior portion of pronotum 

 pale buff-yellow, remainder of pronotum black ; abdomen ochraceous, with a greenish tinge, its base black 

 and with two lateral rows of black spots on each side ; body beneath with the head, thorax, and legs 

 l)lack, the abdomen beneath darker ochraceous than above ; palpi pale buff-yellow. 



Exp. vsdugs, 150 millim. 



Hab. — Malay Peninsula; Perak (Egerton). — Sumatra (Bock — coll. Grose Smith). 



Mr. Egerton had more than once written to me concerning this tltoi undescribed Papilio, 

 which he had succeeded in discovering, but some time elapsed before it reached my hands, 



and I had not noticed that in the meantime it had been received from Sumatra, and was 

 described by Mr. H. Grose Smith, whose name of course claims priority. 



HELENUS Group [antca, p. 343). 

 11. Papilio nephelus mr. saturnus {antca, p. 345). 



I'lijniio alli<iliiit((ti(s, Forbes, Nat. Waud. East. Archip. p. 275 (1885); Waterh. Aid. Ideut. Ins. vol. ii. t. 166, 

 f. 1 (1886). 



Mr. Forbes has redescribed the female sex of this species, having also apparently greatly 

 relied upon the additional pale spot at the apex of the cell of the anterior wings. This, 

 however, is not a constant character, as my Malay specimens sufficiently prove. Further 

 testimony, if needed, is to be found in the fact that this female form of the species is found in 

 all its habitats. 



MACAREUS Group (antca, p. 355). 



30. Papilio megarus. (Tab. XLIL, tig. 9.) 



I'ajiilio Miyaius, Westwood, Arc. Ent. ii. t. 72, f. 2 (1845); Gray, Cat. Lap. Papil. p. 71, n. 326 (1852); 

 Horsf. & Moore, Cat. Lep. Mus. E. I. C. vol. i. p. 90, n. 183 (1857) ; Moore, Proe. Zool. Soc. 1878, 

 p. 840. 



Wings above dark fuscous, with the following spots and markings of pale greyish-green : — anterior 

 wings with a small spot at base of cell, followed by three oblique cellular fasciaB and two spots at end 

 of cell, an oblique spot at base of wings, two spots beneath base of cell, an inner marginal streak, two 

 contiguous fasciae between lower median nervule and submedian nervure, a broad streak between the two 



