EURYMUS. 2 t 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. era/e, Esper, in which the black border of the fore-wings 

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

 E. sareptensiS) Staudinger, which is thus described: "Alls an- 

 ticis margine postico lato nigro ; $ saturatius flavus." 



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

 confounded either with E. hyak or E. palano, 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. sareptensis (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 PIIILODICE. 



(Plate LX I. Fig. 3.) 

 Piipilio palcenO) Cramer (nee Linn.), Pap. Exot. i. pi. 14, figs. 



F,G(i775)- 



Colias dorippe, Godart, Enc. Meth. ix. p. 101, no. 36 (1819). 



Zerene anthyale, Hiibner, Zutr. Exot. Schmett. ii. p. 21, figs, 

 307, 308 (1823). 



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

 (1827). 



Eurymus 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); Scuddcr, Butterflies East. U.S c p. nn (1889). 



