142 Mr. H. J. Elwes on the 



Colias Vautieri, Guer. Voy. Coq. PL XV., fig. 2, 

 1829, ? ; Blanch. Gay Faun. Chil. 

 vii. p. 18, 1852 ; Reed Mariposas, 

 Chil. p. 15, 1877. 



C. rutilans, Boisd. Sp. Gen. i. p. 642, PI. XIX., fig. 3, 

 1836 ; Blanch. Gay Faun. Chil. vii. 

 p. 18, t. I. f. 7 a b, 6, c? ; Heed Mari- 

 posas Chilenas, t. I. fig. 3, 4, c? ? . 



This species, in which the S and ? differ remarkably 

 from each other, the latter resembling the pale ? of Leshia 

 in markings and tint, whilst the c? have something of the 

 brilliant tints of G. electra, is, according to Reed, common 

 through the whole of Chili, from Atacama to the Straits of 

 Magellan. 



The figure of the ? given by Reed is coloured much more 

 darkly than any I have seen, the yellow being almost 

 covered by the black of the border. 



Colias flaveola, Blanch. Gay, Chili, vii. p. 19., 1. 1, fig. 6 ab, 

 Reed Mariposas Chilenas, p. 18. 



The description of this species in Gay does not say any- 

 thing as to the sexes, whilst the figure seems to represent 

 a ? . It is said by Gay to have been taken at Coquimbo, 

 but Reed has never seen a specimen, and there is none in 

 any collection I have seen, though a female from Bolivia 

 collected by Buckley in Mus. Godm. and Salv. somewhat 

 resembles it. 



Very possibly this is not a good species, but only a small 

 aberrant female of dimera or Vautieri. 



Colias Imperialis, Butl. P. Z. S. 1871, p. 250, PI. XIX. ; 

 Reed Mariposas Chil. p. 16. 



This fine and distinct species is easily distinguished by 

 the broad black border on the wing in both sexes, which 

 extends to the anterior margin of the hind wing. 



It is only known to me from three specimens in the 

 British Museum, collected at Portfamine, about the centre 

 of the Straits of Magellan. 



There are specimens of C. Leshia from this locality in 

 the British Museum, and others .of what appears to be 

 Vautieri, though it has a narrower border than Chilian 

 specimens from Sandy Point, a little to the north-east- 

 ward. We therefore have three apparently distinct species 

 of Colias meeting in the Straits of Magellan, so that a large 



