Pierine Butterflies of the Genus Daptonura. 349 



the outer margin of primaries more concave ; the external 

 border of these wings in the male slightly narrower, especially 

 below the second median branch, the inner edge of this border 

 widely sinuous, but not regularly sinuated as in the New 

 Granadian species: the secondaries tinted with sulphur- 

 yellow ; the dark brown outer border much narrower, 

 tapering to a point at each extremity, so that only tliree out 

 of the usual five squaraose whitish submarginal spots are 

 clearly emphasized : on the under surface the brown borders 

 differ as above, and the yellow is a clear brilliant canary 

 instead of gamboge ; the basal lobe of secondaries is barely 

 tinted with saffron, instead of being deep orange. In the 

 female the differences are less marked, but the primaries above 

 are pale brimstone and the secondaries bright brimstone- 

 yellow, far brighter than in D. earymma : on the under 

 surface the borders are slightly narrower than in the female 

 of the latter species, the primaries are brimstone-yellow, with 

 the costal area deepening to canary ; the secondaries are very 

 deep canary-yellow, with a slight tint o+" saffron on the costal 

 edge of the basal lobe, whereas in D. eurymnia these wings 

 are much darker, cadmium-yellow, with deep saffron basal 

 lobe. 



Expanse of wings, ^ 58-70, ? 59 millim. 



Trinidad {Hart, Broadway, and Garacciolo) . B.M. 



Judging \)j the female differences alone, 1 should never 

 have supposed this to be a distinct species ; but the male 

 characters are much more markedly dissimilar from the form 

 of the mainland; the latter ranges from Bogota to Venezuela, 

 but whether to the coast I do not know. 



The true D. eurymnia is like a white edition of D. yoly- 

 Jiynmia, and 1 am satisfied that the two are only forms of 

 one species ; in like manner I still believe that D. moastrosa 

 is only a form of D. florinda, inasmuch as the fact that 

 Dr. Staudinger lias described four types, all differing, clearly 

 indicates inconstancy in the ground-colouring of the wings. 

 The Hewitson collection contains a male and two females, 

 none of which agree with the figures in the ' Biologia'— they 

 are all what botanists know as " selfs." Then, again, the 

 D. panamensis of Staudinger is represented by the opposite 

 sexes of the two forms D. florinda and D. monstrosa, as 

 figured in the ' Biologia,' the male being described as having 

 the primaries white and the secondaries citron-yellow, the 

 female as having the primaries citron and the secondaries 

 ochre-yellow. 



Staudinger's B. anceps is said to be smaller, the secondaries 

 white, like the primaries, but with a yellowish suffusion at 



