870 



MR. H. J. ELWES ON THE BUTTERFLIES [NoV. 15, 



Geographical Table (continued). 



Paptlio machaon, Linn. S. N. x. p. 462. 



Var. AsiATiCA, Men. Enum. i. p. 70 (1855). 



P. asiatica, Butl. Ann. & Mag. Nat. Hist. 1881, vii. p. 133. 



Var. HIPPOCRATES, Feld. Verb, zool.-bot. Ges. xiv. p. 314. 



P. hippocrates, Butl. Ann. & Mag. Nat. Hist. 1881, vii. p. 133. 



Bureiga (Eadde) ; U ssuri (Maaek) ; Askold {Jankowsky) ; Japan 

 {Maries) ; Niugpo, Shanghai {Pryer) ; Pekin (Bremer) ; Japan 

 {Maries, Pryer); Hakodadi {Whitely). 



The forms of P. machaon found in N.E. Asia seem to be 

 similar to the European ones, though usually larger. In Kam- 

 tschatka, according to M6netries, the variety which he calls asiatica 

 (also found in Japan, the Himalaya, and China) occurs. It differs 

 generally in the broader black band and markings, which, however, 

 vary extremely, and gradually increase until in the var. hippocrates 

 (which 1 have only seen from China and Japan) the yellow is half 

 obliterated by the black markings. After comparing numerous 

 specimens, I am unable to see where a line can be drawn to separate 

 these three forms, which, taken singly, are distinct enough. 



P, xuTHus, Linn. S. N. xii. p. 751. 



Var. xuthulus, Brem. Lep. Ost-Sib. p. 4, t. i. fig. 2. 



Bureija (Radde) ; Ussuri (Maack) ; Askold (Jankowsky) ; 

 Shanghai {Pryer); Japan (Pryer, Maries); Pekin {Bremer); 

 Ningpo {Pryer). 



Very variable in size and in the amount of black on the upper- 

 side, some specimens from Japan having the yellow much filled up 

 in the same way as in P. machaon, var. hippocrates. The small form 

 P. xuthulus is now shown to be only a seasonal form of P. xuthus. 



The green-tailed Papilios found in China and Japan are very 

 puzzling, and so variable that it is not easy to say where one species 



