PARNASSIUS. 



501 



of davidis as figured by Oberthiir agrees better with that of P. nomion. The 

 dark abdominal border of secondaries agrees exactly with that of P. nomion, 

 and is quite diiferent to that of P. Itonrathi. Moreover, Oberthiir informs 

 me in reply to my inquiry on the point that the legs and hairs of the under 

 surface of the body of davidis are not black as they are in P. honratlii. The 

 range, too, of honrathi appears to be extremely restricted, being confined to 

 a limited district south-east of Samarkand ; nomion, on the other hand, is 

 distributed throughout the greater part of North-east Asia. I am inclined, 

 therefore, to consider davidis as a form of P. nomion. 



Grum-Grshimailo described a small bright form of P. nomion from Koko- 

 noor and the Dshachar Mountains as var. nomiiis *. 



My collectors failed to meet with P. nomion in any part of China that they 

 visited. 



Parnassius szechenyi. 



Parnassins szechenyii, Frivaldszky, Term. Fuz. x. p. 39, pi. iv. figs. 1, 1 a (188Gj ; 

 Oberthiir, Etud. d'Entom. xvi. p. 4, pi. ii. figs. 11 c?, 13 $ (1892). 



" Alis anticis cretaceo-albis, eodem colore ciliatis, basi, disco et ad marginem costalera nigro- 

 sparsis ; macula cellulari quadrata et disco-cellulari paulo minore tertiaque interna transversa 

 nigris ; fascia lata, curvata pone cellulam discoidulem, a ramo subcostali sccundo usque ad 

 ramum discoidalem secundum cxtensa, altcraque subterminali angusta, flexuosa, in ramo 

 subcostali secundo incipiente et usque ad cellulam internam se extendente, a medio vero in 

 maculas parvas dissoluta, nigro-atomatis ; limbo terminali late subtiliterque nigricanti- 

 atomato, venis flavicantibus. Alis posticis paulo saturatius cretaceo-albis, limbo interno lato, 

 extus biangulato, intensive nigro pilisque longis, canis vestito ; maculis duabus ocellaribus 

 aurantiacis nigro-ciuctis, una infra vcnam costalem rhomboidali, altera vero majore, rotundata, 

 inter ramum subcostalem secundum et medianum tertium sitis ; fascia submarginali 

 angusta, flexuosa, antice dilutiore et ad ramum subcostalem secundum subintcrrupta, hinc 

 vero saturate nigra et angulum posticum versus maculis duabus ocellaribus nigris, obscure 

 cceruleo-pupillatis terminata. 



" Alis subtus dilutioribus, laevigatis; anticarum signaturis superioribus similibus, sed macula cellulari 

 et discocellulari paulo miuoribus, reliquis vero multo obsoletioribus ; posticis basi nigro-atomatis, 

 macula parva basali submarginali, lunuKs duabus propo basin, maculis ocellaribus, limbi 

 iuterni vitta et juxta banc lunulis parvis, fasciaque tenui submarginali nigris, iUis omnibus 

 intus tenuiter aurantiaco-cinctis et maculis ocellaribus colorem dilute roseum simulantibus. 

 Caput deest ; thorax et abdomen pilis longis canis vestita. 



" In Tibet ad lacum Kuku-noor detectus." {FrivaJdszky, I. c.) 



" Ce Parnassius, comme Orleans, habite aux environs de Ta-Tsien-Loii et d'Amdo. Je ne pense 

 pas qu'il ait ete retrouve depuis le voyage au Thibet du hongrois Szecheny, jusqu'a I'ete de 



* Hora) Soc. Eut. Ross. 1891, p. 445. 



