498 



PAPILlOXIDiE. 



lost, and the description of this sex given by Boisduval does not agree with 

 what is now known to be the true female of the male to which Boisduval's 

 description applies. Mr. Elwes, in his paper " On the Genus Parnassivs " *, 

 suggests that the name jacquemonti should apply to the female which Bois- 

 duval described, because its identity appears to him to be more certainly fixed 

 than is that of the male insect. I quite agree, however, with M. Oberthiir 

 that Boisduval's name should apply to the male which we know, and not to the 

 female of which we have no knowledge. In the description of the supposed 

 female of his jacquemonti Boisduval says " La poche de I'extremite de 

 I'abdomen assez developpee, plissee en travers et sans carene lougitudinale," 

 whereas the true female of Boisduval's jacquemonti has a pouch with a well- 

 formed keel. 



Var. himalayensis occurs in Chamba, Spiti, Lahoul, and Upper Gurwhal. 

 It seems to be very local, but common where it occurs. The type was from 

 Lahoul, from w^hence I have also received specimens, as well as from Kokser 

 and the Dugi Pass. The examples from the latter locality are very dark and 

 approach the var. tibefanus. 



P. epaphiis also occurs on the Dugi Pass, but at higher elevations than 

 P. jacqnetnonti. 



Actius and other forms of P. jacquemonti have been described as distinct 

 species, but as these do not belong to the region under consideration it is 

 unnecessaiy to discuss them here. 



Listrihutiou. Central Asia, N.W. Himalayas, Western China. 



Parnassius nomion. 



rarnassiuH nomion, Fischer, Eiit. Russ. ii. p. 212, pi. vi. figs. 3, 4 (1823) ; Boisduval, 

 Sp. Gen. i. p. 397, pi. vi. fig. 1 (183G) ; Lang, Butt. Eur. p. 22 (1881). 



Parnassius davidis, Oberthiir, Etud. d'Entom. iv. pp. 23, 108, pi. ii. fig. 2 (1879), xiv. 

 p. 2, pi. i. figs. 3, 3 a (1891). 



Parnassius nomion, var. mandsc/iuria;, Oberthiir, Etud. d'Entora. xiv. p. 2, pi. ii. fig. 10 

 (1891). 



" Expands 3 in. Very close to P. apollo, Imt t-lio hind wings have a red spot at the base, and tlio 

 inner margins are more strongly Ijlack ; all the wings liave a hind marginal border of square 

 black and wliite spots. Time of appearance, July (Uoisd.). Habitat, Siberia." {Lan(/, I. c.) 



Var. davidis, Oberthiir. " llessomble bcaucoup a. nomion; mais bion plus obscur, cfc ayant la 

 bande suhmarginalc blanche des snperieuros plus pres du bord oxtcricur que dans nomion. 



* I'roc. Zool. Soc. Lond. 1«8(), p. 36. 



