496 



PAPILIONIDJS. 



les autres espuces du mcme genre, parait iutermediaire eiitre les P. apollo et phoebus. A leur 

 extremite, les quatre ailes sont subdiaphaues, cette partie transparente ctant precedee d'une 

 serie de lunules bordees de blanc exterieurement. Eiit-re cette rangee de lunules et la cellule 

 discoi'dale, ces ailcs anterieures offrent deux taches noircs, ordinairement marquees de rouge, 

 ainsi qu'une autre tacbe situee au bord intense. Comme dans les P. plccehus et apollo, il 

 existe encore une tache noire a Textremite de la cellule discoVdale, et une autre vers son 

 milieu. 



" Les ailes posterieures ont leur gouttiere abdominale tres noire, et prt'seutent deux taches ocellees 

 rouges, bordees do noir, et ordinairement blanches au centre : I'une situee au bord externe, 

 I'autre vers le milieu. On remarque en outre ii Tangle anal uno tache noire allongee 

 souvcnt marquee de rouge. Les quatre ailes sont en dessous a peu pres semblablcs au dessus ; 

 seulement les posterieures ofFrent a leur bord, comme dans la plupart des Parnassiens, trois 

 ou quatre taches rouges, dont on retrouve a peine la trace en dessus ; eusuite, vers Tangle 

 anal, il existe deux taches rouges tres distinctes, dont Tune arrondie et Tautre presque tri- 

 angulaire. Les antennes sont grisatrcs, fortement annelees do noir." {Blanchard, 1. c.) 



The following descriptions refer to the Chinese form (Plate XXXIII. 

 fig. 3, 6):- 



Male. Similar to P. Jacquemonfi, var. Jiiinalayensis, Elwes, but the ground-colour is very much 

 darker and the wings are less densely covered with scales and are more glossj' in apjiearance, 

 the submarginal band is composed of white bar-like spots bordered with blackish, in himalaij- 

 ensis this band is formed of lunulate spots ; the central ocellus of secondaries is internally 

 bordered by a pale bar ; the crimson spots arc of a deeper colour, but that at anal angle is 

 absent. Fringes as in JimaJai/ensis, but much more, broadly checjiiercd witli black. 



Female. Agrees with the male, but is usually somewhat larger and yellower in tint. The pouch 

 (represented under figure of the male, Plate XXXIII.) agrees in shape with tliat of 

 himalaijensis, and varies in colour from dark brown to black. 



Expanse, S 69-80 millim., $ 78-90 millim. 



Appears to be common in Western China at How-kow on the Thibetan 

 frontier, wliere it occurs at a great elevation. 



Fritz lliihl, who describes this insect under my manuscript name thihetanus, 

 or, as he writes it, tihetanm, states that it occurs at Ta-cliien-lu ; but this is 

 certainly an error, as this form has so far only been received from llow-kow, 

 from whence I liad a large number of specimens. It is, without doubt, 

 nothing but a well-marked local race of jacquemonfi and is the darkest 

 form of Parnassius known to me. The red spots vary in si/e and uuiy be 

 with or witlu)ut wliitc; centres; some exam])l('s haAc tliree red s])()ts on 

 primaries, and in others there arc no red spots on th(>se wings. The 

 female varies in coh)ur from yellow to wliite according to the freshness of 

 the specimens. 



The four s])ccimens frc^m the liiinalayas (2 cJ , 2 ? ) to whicli IJoischn al r(>fers 



