PAENASSIUS. 



499 



De plus, la /range des 4 ailcs est entih'ement noire. C'cst la seulo espJice do Parnassias offrant, 

 a ma coniiaissaiice, cctte particularity. 

 " Jford do la Chine (Armand David) ; 1 $ ." (Oberthur, I. c.) 



Yar. mandschuriae, Obcrthiir. " J'ai fait figiirer la forme de Mantschourio que m'a cnvoyce 

 M. Jaukowski en six males et quatro femellcs. Le facies de cetto forme geographique est assez 

 particulier et cela tient surtout a ce quo Ic fond des ailcs est moins blanc dans les echantillons 

 de Sidemi que dans ccux de Sibdrie et du nord de la Chine, ou M. I'abbc David a trouvc nno 

 race supcrbe et magnifiqucmcnt colorce do nomion. Lo fcston hyalin qui longe le bord 

 marginal des ailes est aussi generalement plus sombre et avec une apparence huileusc dans 

 les exemplaires de Sidemi. 



" La femelle qui existait dans la collection Boisduval avec cette etiquette que je transcris 

 testuellcment ^Nomion, Fischer, Eschscholtz, Calif, russc ' est semblable aux femellcs de. 

 Mantschourio. 



" Dans les six males de Sidemi, les ailes superieures ont tons les points noirs absolument dt'pourvus 

 do pnpillation rouge et une des feracUes est ainsi. Les males paraissent tendre i\ avoir les 

 ocelles rouges des ailes inferieurcs depourvus de ponctuation centrale blanche ou au moins 

 tres peu fortement ponctues de blanc." {Oberthiir, I. c.) 



Referring to P. nomion, in his paper on the genus Parnassiiis *, Mr. Elwes 

 says : — 



" This species, though at first sight very like P. apollo, may be certainly 

 and constantly distinguished by the fringes of the wings, which are conspi- 

 cuously chequered black and white ; Avhilst in P. apollo this is never the 

 case to the same extent, though some specimens have a tendency to it. The 

 pouch also (though of the same general form) is black, more lengthened 

 behind, and set on at the end, and not underneath the abdomen; the antennse, 

 the clothing of the body, and the general pattern of the markings are very 

 similar. 



" I am not aware that the geographical range of the two species anyAvhere 

 meets, P. nomion first appearing in the mountains of Dahuria, whilst P. apoUo 

 seems to go no farther east than the Altai Mountains ; but these ranges on 

 the Siberian frontier are but little known. 



" P. nomion appears to be common in the valley of the Amur, at Raddef- 

 skaia and Khabarofka, and Christoph found the larva feeding on a yellow- 

 flowered Sedum near Vladivostock. According to Menetries P. nomion is 

 found near Irkutsk and at Kiachta, and I have seen a specimen from this 

 locality in Dr. Fixen's collection. 



" Bremer says it is found on the north side of Lake Baikal on the Oiion 



* Ibid. 1886, p. 27. 



3u 2 



