COLT AS. 221 



Gonepieryx, Leach, Edinb. Encycl. ix. p. 128 (1815); Doubl. 



Gen. Diurn. Lepid. p. 69 (1847) ; Butler, Cist. Ent. i. pp. 



35> 45 ( l8 7); Schatz, Exot. Schmett. ii. p. 68 (1886). 

 Rhodocera, Boisduval & Leconte, Lepid. Amer. Sept. p. 70 



(1833); Boisd. Spec. Gen. Lepid. i. p. 597 (1836). 

 Body stout, hairy ; palpi and antennae short, the latter thick, 

 with the club gradually formed. Fore-wings with the costa 

 strongly arched, and ending in a projecting point ; hind-wings 

 with a short projection at the end of the second median ner- 

 vule ; the lower disco cellular nervule much curved on all the 

 wings. Fore-wings with the sub costal nervure four-branched, 

 the second branch emitted some distance before the end of the 

 cell ; the upper radial a little beyond. The fourth sub-costal 

 nervule runs to the costa just above the projecting tip. The 

 pulvillus between the claws of the tarsi is long and narrow. 



This genus is common throughout the Palaearctic Region, 

 but does not extend beyond it. It attains its maximum of 

 development in the south-west in C. deopaira (Linn.), with a 

 fiery-orange centre to the fore-wings of the male; and in the 

 more subdued, but more generally diffused rich orange of the 

 Canarian C. ck-.intk (Hiibner). 



THE BRIMSTONE BUTTERFLY. COLIAS RHAMNI. 



(Plate LX. Fi. I.) 

 Papilio rhawni) Linn. Syst. Nat. (ed. x.) i. p. 470, no. 73 



(1758); id. Faun. Suec. (ed. ii.) p. 272 (1764); Esper, 



Schmett i. (i) p. 73, pi. 4, fig. 4 (1777); Hiibner, Eur. 



Schme't. i. figs. 442-444 (1803 ?). 



Colias rhamni, Godart, Enc. Meth. ix. p. 89, no. 2 (1819). 

 Gonepterya rhamni, Stephens, 111. Brit. Ent. Haust. i. p. 8 



(1827); Curtis, Brit. Ent. iv. pi. 173 (1827) ; Kirby, Eur. 



Butterflies and Moths, p. n, pi. 4, tig. 9 (1878); Lang, 



