522 



PAPILIONID.E. 



" En dessous, les differences sigualees en dcssus sont reproduites, puisque le dessous reproduit les 

 dessins du dessus. 



" Je posscde de^ix exemplaires absolument pareils du P. tamerlanus." (OhertJiur, I. c.) 



The female, which has not been previously described, only differs from the 

 male in the rather yellower tint of the ground-colour, and in the black markings 

 being paler; this sex is exceedingly rare, as among a large number of 

 specimens there was only one female. Tamerlanus can at once be separated 

 from its allies by the straight central line of secondaries, which has no tendency 

 to form loops on the under surface ; the space between the two submarginal 

 lines on primaries is frequently suffused with black, and in some specimens 

 is entirely filled up with this colour. 



Fairly common at Moupin, Wa-ssu-kow, and Chow-pin-sa in Western 

 China. 



Papilio alebion. 



Papilio alebion, Gray, Cat. Lep. Ins. Brit. Mus. p. 30, pi. xiii. fig. 0 (1852). 

 Papilio mariesi, Butler, Ann. & Mag. Nat. Hist. (5) vii. p. 33, pi. iv. fig. 4 (1881). 



"The primary wings yellowish white, with six bauds across the wing black ; the first uud second 

 bands extend to the inner margin, the third to the fifth arc short and reach only to the 

 median nervure; the outer margin very broadly bordered with blacTv, which is divided iu its 

 whole length by two bands of yellowish white, and at the inuer anterior angle by a short 

 narrow band of the same colour. The secondary wings are yellowish white, Imving the first 

 and second bands of the primary wings continued to the anal angle, where they unite ; the 

 outer margin is bordered with black, having two short lines of yellowish white at the anterior 

 angle, but towards the posterior part of the inner margin it is ornamented with yellowish- 

 white and grey lunules ; the anal angle has a large patch of bright yellow with a black luiiule, 

 having a grey lunulc in the middle. 



" The under surface of all the wings is very similar in colour and markings, but the outer margin 

 is less black ; the commencement of the middle band of the secondary wings has a bright 

 yellow spot, margined internally with white and outwardly with black ; and below this spot 

 is a short white lino on the outward side of the band ; tlio patch at the anal angle is partly 

 white and partly yellow. 



"Tliis sjjccics is alh'ed to /'. i/Ji/rerion, hut the wings are of a more slender form. 



" In Collection (lirit. Mus.) from iS'orthern China." {O'rai/, 1. c.) 



Var. mariesi, Butlor. " Allied to P. alehion, from wliich it differs in the absence of the submar- 

 ginal black band on the primaries, the luirrower discal belt of secondaries, which is greyish 

 externally, and becomes obsolete towards the costa, the slightly larger white spots above the 

 l)lue-centred marginal black sjjofs of the secondaries, and the slightly larger and deoiier- 

 coloured orange suhanal patch : on the under surface the primaries differ as above, the outer 

 discal line of the secondaries is obsolete, and the marginal black stii]ie encloses a much 

 Bmallcr 8 pot of the ground-colour at ajiex. Expanse of wings 2 inches lU lines. 



