South American Micro- Lepidoptera. 207 



widely remote from base and band, median shortest; a short 

 extremely fine white dash just below costa near band; a broad 

 orange transverse postmedian band, margined anteriorly by a vertical 

 violet-golden-metallic fascia followed by a black subcostal dot, and 

 posteriorly by two prismatic-golden-metallic transverse spots edged 

 anteriorly with blackish, lower wholly anterior to upper but just 

 touching it at angle; a very short violet-white mark midway 

 between this and apex, and a short silvery-white dash at apex : 

 cilia dark fuscous, with a white apical dash, and white costal spot 

 on posterior edge of band. Hindwings and cilia dark fuscous. 



British Guiana, Bartica, from February to April 

 (Parish) ; five specimens. Most like helonacma, but 

 without orange posterior projection of band. 



Cosmopteryx teligera, n. sp. 



(^ $. 8 mm. Head dark bronzy-fuscous, crown with three fine 

 white lines, face bronzy. Palpi white lined with black. Antennae 

 blackish, dotted and lined with white, four apical joints white, then 

 five black, one white, one black, one white. Thorax dark bronzy- 

 fuscous, with three fine white lines. Abdomen dark fuscous. 

 Posterior tibiae blackish, with silvery-white basal dash and median, 

 subapical, and apical rings. Forewings very narrowly lanceolate, 

 apex long-produced, caudate; blackish; a fine oblique silvery- 

 white subcostal line from near base to about J, and short fine 

 silvery-white median and subdorsal lines beneath apex of this, 

 not nearly reaching base or band ; a broad orange transverse post- 

 median band, narrowed downwards, margined anteriorly by a 

 vertical violet-golden-metallic fascia followed by a black subcostal 

 dot, and posteriorly by two violet-golden-metallic rather oblique 

 spots edged anteriorly with blackish, lower anterior but just touching 

 upper at angle ; a short fine silvery -white apical dash : cilia dark 

 fuscous, with white apical dash and white costal spot on posterior 

 margin of band. Hindwings and cilia dark fuscous. 



Colombia, Cali, 500 feet, in May {Parish) ; two specimens. 



Cosmopteryx tenax, n. sp. 

 (J. 10 mm. Head dark bronzy-fuscous, with fine white lines 

 above eyes, face pale silvery-bronze. Palpi white lined with black. 

 Antennae dark grey, towards base blackish dotted and lined with 

 white, four apical joints and tenth and twelfth obscurely mixed with 

 whitish. Thorax dark bronzy-fuscous, with three fine white lines. 

 Abdomen dark fuscous. Posterior tibiae blackish, with silvery- 



