EURYMUS. 2 [ 7 



rapidity, perhaps because, being a much rarer insect, it is more 

 hotly pursued. 



In Eastern Europe, and throughout Northern and Central 

 Asia as far as the Himalayas and Japan, there are a cluster of 

 species or varieties closely allied to this, which some authors 

 associate with it, and others regard as distinct. Among these 

 is E. ei-ate, Esper, in which the black border of the fore-wings 

 is continued to the hinder angle ; another is the form known as 

 E. sareptcnsis^ Staudinger, which is thus described : " Alis an- 

 ticis margine postico lato nigro ; $ saturatius flavus." 



It is much to be regretted that this species has always been 

 confounded either with E. hyale or E. pakeno^ two Linnean 

 species about the identification of which there never ought to 

 have been any doubt. There is consequently no old name that 

 belongs to it at all, and I have therefore no alternative but 

 either to adopt for it the name of E. sarepte?isis (as I once pro- 

 posed to do), or of some other allied Eastern form with which 

 it may not after all be truly identical; or to adopt the name of 

 E. kirbyi, given to it in jest by the late Mr. Arnold Lewis. 



THE SCARCE CLOUDED YELLOW. EURYMUS PHILODICE. 



{Plate LXL Fig. 3.) 



Papilio palccno^ Cramer (nee Linn.), Pap. Exot. i. pi. 14, figs. 



F,G(i775)- 



Colias dorippe, Godart, Enc. Meth. ix. p. 10 1, no. 36 (1819). 



Zcj-ene anthyale, Hiibner, Zutr. Exot. Schmett. ii, p. 21, figs. 

 307, 308 (1823). 



Colias europonie^ Stephens, 111. Brit. Ent. Haust. i. p. 10, pi. i 

 (1827). 



Etiryimts philodice^ Swainson, Zool. 111. ii. (2) pi. 60 (1831?). 



Colias philodice^ Godart, Enc. Meth. ix. p. 100, no. 55 (1819); 

 Boisduval & Leconte, Lepid. Amer. Sept. p. 64, pi. 21, 

 figs. 1-3 (1833); Boisduval, Spec. Gen. Lepid. i. p. 647 

 (1836); Scudder, Butterflies East. U.S. p. 11 11 (1889). 



