South American Micro-Le/pidoptera. 203 



and beautiful coloured hyaline eye of hindwings are omitted 

 in the original description. The terminal joint of palpi is 

 considerably (not slightly) thickened with scales. 



COSMOPTERYGID AE . 



Cosmopteryx pentachorda, n. sp. 



cj $. 9-10 mm. Head dark bronzy -fuscous, crown with three 

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

 blackish, dotted and lined with white, two apical joints blackish, 

 then two white, three blackish, one white, one blackish, one white. 

 Thorax dark bronzy-fuscous with three white lines. Abdomen 

 rather dark fuscous, segmental margins sometimes whitish. 

 Posterior tibiae dark fuscous, with white lateral line from base 

 to beyond middle, and white apical ring. Fore wings narrow - 

 lanceolate, apex very long-produced, caudate ; dark bronzy- 

 fuscous ; fine white subcostal oblique and median lines from base, 

 and subdorsal from beneath middle of these, all these nearly reach- 

 ing band ; costal edge white for some distance before band ; dorsal 

 edge white from base to near band ; a broad ochreous-yellow post- 

 median transverse band, marked with four pale golden-metallic 

 spots, first on anterior edge above middle, followed by a black dot, 

 second on dorsum posterior to first, just touching it at angle, thus 

 cutting off a yellow spot, third and fourth within posterior margin, 

 opposite, upper preceded by two or three black scales ; from middle 

 of yellow margin of band a white sinuate line runs to apex : cilia 

 light grey, with white dash at apex and whitish costal spot on 

 posterior margin of band. Hindwings and cilia light grey. 



Ecuador, Huigra, 4500 feet, in June ; Peru, Lima, 500 

 feet, and Chosica, 2800 feet, in July and August (Parish) ; 

 six specimens. 



Cosmopteryx tetragramma, n. sp. 



<J $. 8-9 mm. Head dark bronzy-fuscous, with very fine white 

 lines above eyes, face silvery. Palpi white lined with blackish. 

 Antennae blackish lined with white, four apical joints white, then 

 five black, one white, one black, four white with dark fuscous 

 basal spots. Thorax dark bronzy-fuscous. Abdomen rather dark 

 bronzy-fuscous. Posterior tibiae dark fuscous with fine white 

 lateral line on basal half and whitish apical ring. Forewings very 

 narrowly lanceolate, apex slenderly long-produced, caudate; dark 

 bronzy -fuscous ; a very fine white somewhat oblique subcostal line 

 from base to J ; a very fine white median line from near base to J ; 



