PAP1LIO. 35 



dull dark black. Underside slightly paler than upperside. Hind 

 wing with six submarginal pale flesh-coloured lunules and a simi- 

 larly coloured broad anal lunule as in J , the surrounding marginal 

 border duller black. Thorax and abdomen above fuliginous black ; 

 collar, front of head, sides of thorax beneath, and abdomen beneath 

 pale crimson, segmental bands on abdomen beneath black ; an- 

 tennae arid legs black." (J\loore.) 



Evp, rf 102-108 mm. (4-03-4-28"). 



Hab. Bhutan. 



MACH AON GROUP. 



c? 2 Sexes alike in the shape of the wings and in the pattern 

 of colours. Pore wing : costa very slightly ai-ched, curved near 

 apex ; apex well marked, obtuse ; ternien straight, very slightly 

 oblique ; tornus broadly rounded ; dorsum straight ; cell longer 

 than half length of fore wing, upper and middle discocellulars 

 subequal. Hind wing : costa very slightly arched, long ; termen 

 curved, scalloped, with or without a short, generally slender tail 

 at apex of vein 4 ; tornus lobed ; dorsum straight or slightly 

 concave ; cell comparatively short, upper discocellular longer than 

 middle. Antennae not quite half length of fore wing, club 

 somewhat massive but gradual ; abdomen with the anal valves 

 prominent. 



Key to the forms of the Machaon Group. 



a. Hind wing with tails. 



a'. Fore wing upperside: base of cell uniform dusky 

 black without longitudinal streaks of creamy 

 white. 

 a 3 . Hind wing upperside : ochvaceous red,tornal 



spot not separated by a black line from blue , p mach race 



lunule above it < *,,.,. qp, 



-'. Hind wing upperside : oehraceous red, tornal ' s Pjru*, p. OU, 

 spot separated by a black line from the , p mach race 



blue lunule above it { ., , . ' o ft 



b'. Fore wing upperside : base of cell not uniform ' st//ltmensts > P- db - 

 dusky black, traversed longitudinally by four 

 more or less broken slender creamy-white 

 lines P. xuthus, p. 38. 



b. Hind wing without tails. 



a'. Hind wing upperside : creamy-yellow band 



that crosses wing comparatively narrow so as 



to leave at least a third of the cell at apex 



black P. demoleus, p. 39. 



b'. Hind wing upperside : creamy-yellow band 



that crosses wing comparatively broad so as 



to leave barely a fourth of the cell at apex /p demol race 



black I malayanus, p. 3D. 



