326 Mr. L. B. Prout on 



black scales, not appreciably constricted in middle of wing, 

 its proximal margin wanting the deep sinus of trajectata ; 

 the white line which follows the postmedian not projecting 

 a long tooth into central fascia on SC 3 ; hind wing greyish- 

 clouded in cell and from inner margin to M 1 (in the darkest 

 aberrations of trajectata the grey shading is uniform across 

 the wing, leaving a postmedian band and subterminal line 

 white) ; under surface, especially of hind wing, darker, the 

 postmedian pale band from costa of fore wing broader and 

 whiter, postmedian line of hind wing nearer to termen 

 (fully 3 mm. distant in trajectata, only 2 mm. in luxuriata, 

 at least at the nearest point — below R 3 ). 



Torne, Colombia, Augnst 1907 ; four <$ $ . 



Two of the examples are in most beautiful condition, and 

 the difference of tone and aspect from trajectata — of which 

 I also possess very fine material from Ecuador, Peru, and 

 Bolivia — provoked careful investigation, with the results given 

 above. Had one only a single example, it might possibly be 

 passed over as an aberration of the very variable trajectata. 



Hammaptera albipennis, sp. n. 



cJ. 34 mm. — Very much resembling H. trajectata, but 

 somewhat paler; the outer edge of central fascia more 

 deeply indented beyond cell, and more sharply oblique to 

 submedian fold ; the pale band beyond it white with a grey 

 thread, not tinged with green, and broader below middle ; 

 hind wing with the termen, especially at apex, more rounded, 

 white, with a line of confluent grey spots close before ter- 

 men ; a slight grey cloud at base ; underside of fore wing 

 with apex white, the pale band beyond the central fascia 

 brown ; underside of hind wing dark close before termen. 



Huancabamba, N.E Peru; three $ <$ . 



Walker's et Cidaria " extensata, from Bogota, seems to be 

 also near to this species. His type is not in very good con- 

 dition, but it shows no trace of the characteristic dark border 

 to the hind wing. 



Perizoma (?) renitens, sp. n. 

 $ . 36 mm. — Head and thorax dark fuscous; abdomen 

 grey, with pairs of large black spots on hinder edge of dorsal 

 segments. Fore wing with basal patch blackish brown with 

 a grey middle band ; interval between it and central fascia 

 pearly grey with a bluish-white tinge, its centre dull tawny, 

 wider at costa, its outer white edge broad, projecting into 

 central fascia between SC and M 2 , and traversed by a dark 

 grey lunulate-dentate line; central fascia margined with 

 brown bauds, the brown becoming velvety black above SC 



