AEASCHNIA. 273 
in colour, is of uniform widtli throufrliout ; the fulvous submarginal line is 
uninterrupted and parallel with tlie (uiter margin. Tlic design of the under 
surface separates this species at once from its allies. 
Seeing how closely fa/lax resembles prorsa, and tliat both are summer 
insects, it seems highly probable that the former may have a spring brood as 
Avell as the latter. 
"When dealing Avith far fewer specimens, I considered that faUax, Janson, 
was the second brood of yi. burejana; but if it were so fallax would surely 
occur in either Amurland or China, instead of being confined, as it appears 
to be, to Japan. The same objections apply to prorsoidcs being a form 
of fallax. The specimens previously recorded by me from Corea as 
A. fallax I have now determined to be only strongly marked examples of 
i\\e j)rorsa iorm. oi A. levana. Dr. A. Fritz (Zool. Anzeiger, 1S90, p. 13) 
discusses Japanese Araschnioe, but as he does not clearly indicate the various 
forms, I am unable to follow his remarks. 
Occui's at Hakodate, Yokohama, and Oiwake in Japan. 
Araschnia prorsoides. (Plate XXVI. figs. 1 s ,2 2 .) 
Vanessa prorsoides, Blaiicliard, Coniptes Rend. Acad. Sci. Ixxii. p. 810 (1871). 
Vanessa prorsoides, var. levanoides, Blanchard, 1. c. 
Araschnia prorsoides, Elwes, Proc. Zool. Soc. Loud. 1891, p. ^85, pi. xxvii. figs. 5 ^J , 
6?. 
Araschnia striffosa, Alpheraky (nee Eutler), Rom. sur. Lep. v. p. Ill, pi. v. fig. 6 
(1889). 
" Vanessa j^rorso'iih'S, notablcment plus grande que la Vanessa 2'»'orsa, a.\ec les ailcs plus fortement 
dentelees, raj^ees suivant im systimc analogue, et une varietc livano'ides, resemblant par la 
teinte general des ailes a la variete hvatia." {Blamhard, I. c.) 
" Above most like the European form porima, Ocbs., but has the broad band on the fore wing 
above in a straight line with that ou the hind wing, and the outer bauds paler and straighter 
than in European or Japanese specimens. Beneath, the general coloration and markings 
resemble hurejana more than porima, but this species is paler than either, and has a lilac 
patch round the white marginal spots on both wings as in burejana. In size it is constantly 
much larger than European and rather larger than Japanese specimens ; the margin of the 
hind wing is also much more scalloped out between the veins." (Elwes, I. c.) 
A. prorsoides is nearest allied to A. fallax, Janson. 
Alpheraky (/. c.) figures a specimen of this species taken by Potanine in 
North-western China under the name of sfrigosa, Butler, an error he would 
have avoided if he had had the opportimity of examining Butler's type. 
The figiu-e represents a form of A. prorsoides, Blanch. 
