36 



veinlets are shorter than those of L. Amurensis, showing thus 

 either the rounding of the wing had taken place in L. Morsei or 

 the reverse had occurred in L. Avmrensis, which changes depend 

 entirely upon the original place of the species. 



In Figs. 5 and 6 I have traced out the outline of the wings 

 comparatively, the dotted line showing the Hokkaido species 

 L. Morsei, and the plain line that of the main island. Fig. 5 

 shows the comparative outline of the male wings, and Fig. 6 of 

 the female. Figs. 7 and 8 show the comparative outline of the 

 male and female insects ; Fig. 7 showing the outline of L. Morsei 

 and Fig. 8 that o{ L. Amurensis\ the dotted line shows the S and 

 the plain line the ? . 



3. Argynnis Rabdia. Butler. Fig. 9. 



The Hokkaido representative of this species has its wings 

 Slightly rounded, Fig. 10 ; the inner deep brown borders of the 

 median band between the costal vein and the first subcostal vein- 

 let straight, and the outer borders of the same bent inward, the 

 reverse taking place in the species of the main island. Many 

 other differences occur between these species, which are, how- 

 ever, not constant. 



In P'ig, 1 1 the outline of the primaries of the male speci- 

 mens are compared, and in Fig. 12 that of the secondaries, 

 together with the borders of the band. The dotted line in both 

 figures show the Hokkaido species and the plain line the species 

 of the main island. 



4. Papilio Jutanus. Fenton. 



This species occurs not only in Hokkaido, but also in the 

 mountains of the main island. Its ally, P. Dehaani, Felder,is com- 

 mon round Tokio and northward (principally), becoming scarcer 

 as we go up in Hokkaido, while P. Jtitanns becomes more and 

 more numerous, until near Sapporo we entirely lose sight of P. 

 Dehaani. 



These two species or varieties, as Mr. Fenton doubts, differ 

 from each other both in the form of wings and in their 

 markings. In P. Jutanus the outer edges of the primaries are 

 slightly scalloped, (Figs. 13 and 14, 13 showing the male wings 

 and 14 the female). The submarginal band of the green atoms 

 of the primaries is more distinct and narrower; a band of yellow 

 atoms a little beyond the middle of the secondaries below, wholly 

 absent in P. Dehaani. 



I must add that the majority of the facts in this note 

 were made by Mr. M. A. Fenton, and were handed to me in the 

 year 1878, after our summer's trip to that island, Mr. Fenton 

 giving me the liberty of communicating them at the meeting of 

 the Biological Society at Tokio. 



I will not venture to draw any conclusions from these simple 

 observations, but I trust that they may be of interest to the 

 readers of Papilio. 



