10 PAPILIONIDjE. 



considerably longer ; all the tooth-like projections on the outer 

 margin much longer, especially those at the terminations of the 

 2nd subcostal and 1st median nervules. Underside : fore wing 

 with the five black fasciae crossing the wing much broader, espe- 

 cially the middle one. Hind w T ing with the discal yellow fascia 

 broader. $ . Considerably larger than that sex of T. imperialis. 

 Upperside : both wings much darker, all the black coloration more 

 prominent. Hind wing has the pale violet black-irrorated discal 

 area of T. imperialis almost entirely replaced by a black suffused 

 area, the black line closing the cell entirely obliterated ; the 

 chrome-yellow subanal area at least twice as broad, the outer discal 

 lunulated black fascia consequently placed much nearer to the 

 outer margin ; all the tails very much longer. Underside : both 

 wings with much the same differences as on the npperside. 

 " Exp. $ $ 4'4-5'7 inches. 



"Hah. Taungoo Hills, 4000 feet, Upper Tenasserim, Burma." 

 The type specimens are now in Mr. Rothschild's collection. 



Genus PAPILIO. 



Papilio, pt., Linn. Syst, Nat. ed. x, i, 1758, p. 458. 

 Papilio, Latr. Hist. Nat. Cmst. et Ins. iii, 1803, p. 387. 

 Troides, Hiibner, Verz. bek. Schmett. 1816, p. 88. 

 Ornithoptera, Boisduval, Toy. Astr., Lep. 1832, p. 33. 



Type, f. priamus, Linn., from Amboina. 



Range. Both hemispheres. 



cJ $ . Wings vary extraordinarily in shape and in expanse. 

 Fore wing : cell about half the length of the wing or more ; 

 upper and middle discocellulars subequal or upper slightly longer 

 than middle, lower discocellular bent sharply inwards at an angle 

 so as to apparently form the apical portion of the median vein ; 

 veins 7 and 8 stalked, the furcation at varying distance beyond 

 apex of cell, but the fork generally long ; vein 9 from upper 

 apex of cell ; 10 and 11 free, in one section vein 11 anastomosed 

 with 12, both originate from beyond middle of subcostal vein. 

 Hind wing : cell and discocellulars very variable in length, pre- 

 costal spur simple. Antennae comparatively short ; club generally 

 gradual but distinct ; eyes naked ; palpi short, pressed close into 

 the face. 



Linna3us placed under Papilio a vast number of butterflies, now 

 arranged in different families, dividing them merely into groups. 

 Latreille first restricted the name to the "swallow-tails." "In 



this action he has been followed by all authors until now 



it has become the all but universal custom to apply it to an 

 immense group." (Scitdder.) 



In this work I have with one or two alterations followed 

 Kothschild's revision of the genus PapiUo (Nov. Zool. ii, 1895, 

 pp. 167-463), and have accepted the groups and their sequence as 

 arranged by him. I have, however, placed Troides, Hiibner = 



