414 Mr. O. Salvin on new Species of Butterflies 



40. Helicomus etylus. 



Exp. 3*30 in. Similar to H. vesta, but differs in having 

 the anterior wings more elongated, and the yellow patch on 

 the middle of the wing is represented by a small oval spot 

 halfway between the cell and the apex. In the position of this 

 spot this species differs from all races and varieties of H.vesta. 



Hah. Ecuador, Guadalquiza [Pearce). 



Mus. S. & G. 



41. Heliconius montanus. 



(J. Exp. 3*70 in. Like H. clysonyma, Latr., from New 

 Granada, but is larger, and the red band across the posterior 

 wing is twice as broad. 



Hah. Costa Rica, Orosi {Kramer). 



Mus. S. & G. 



42. Heliconius pacMnus. 



S . Exp. 3*40 in. Somewhat like H. aranea, F., but differs 

 notably in the following points : — The base of the anterior 

 wings is wholly black ; the central yellow cross band is only 

 interrupted by the nervures, and is altogether beyond the cell ; 

 the apical band is nearer the apex of the wing : the posterior 

 wings are crossed transversely by a conspicuous yellow band, 

 which is divided by the black nervules ; the cilia of the outer 

 margin is black : the underside is marked exactly as above, 

 the red spots at the base of the posterior wings being just as 

 in H. aranea. 



Hah. Volcano of Chiriqui. 



Mus. S. & G. 



43. Helicomus sotericus. 



^ . Exp. 3*45 in. Very closely allied to H. telesiphe (D. & 

 H. Gen. Diurn. Lep. t. 15. f. 2) in all its markings, and dif- 

 fers only in having the transverse band on the hind wings 

 yellow instead of pure white j it is also slightly broader. 



Hah. Guaymay, Ecuador {Buckley). 



Mus. S. & G. 



Ohs. This species and Colcenis tithraustes, described below, 

 in Ecuador take the place of H. telesij)he and Colcenis telesiphe^ 

 which are found together further south in Peru. The resem- 

 blance between the Heliconius and Colcenis is most remark- 

 able ; but still more singular is the complete isomorphism in 

 both genera as regards the band of the hind wings. 



Mr. Buckley captured several specimens of this species 

 during his recent visit to Ecuador. 



