South American Micro-Lepidoptera. 23 



Wals.), metaspilana, Walk., and leucomesana, Walk., were 

 all received from Bartica in good series. 



Eucosma prudens, n. sp. 



(J $. 15 mm. Head in ^ ochreous-whitish somewhat spotted with 

 dark fuscous, in $ ochreous spotted or almost wholly suffused with 

 dark fuscous. Palpi subascending, shortly rough-scaled, whitish, 

 second joint suffused with reddish-fuscous except towards apex, 

 base of terminal joint dark fuscous. Thorax whitish more or less 

 mixed or suffused with fuscous, anterior fourth dark fuscous. Abdo- 

 men dark grey, anal tuft in (J grey-whitish. Fore wings elongate, 

 posteriorly dilated, costa gently arched, without fold, apex obtuse, 

 termen somewhat sinuate, vertical; fuscous, sprinkled with dark 

 fuscous and blackish, in (^ irregularly mixed and suffusedly striated 

 with whitish, dorsal half in $ suffusedly striated with violet-leaden- 

 grey; costa marked with pairs of whitish strigulae, and small 

 blackish spots between these; edge of basal patch indicated by 

 an iiTegular dark fuscous streak, angulated in middle, across fold 

 with a blackish mark edged posteriorly with white; central fascia 

 very irregular, oblique, dark fuscous, suffused, only distinct on costa ; 

 four blue-leaden oblique marks from pairs of costal whitish strigulae 

 posteriorly, second running as a striga to termen beneath apex, edged 

 beneath with white posteriorly, others short; termen narrowly 

 fulvous-brown, with a fine oblique white strigula before apex; 

 ocellus limited beneath by a whitish line and posteriorly by a 

 leaden- metallic streak edged externally with white, and enclosing 

 two black dots : cilia whitish, greyish towards tips on termen, with 

 a leaden subbasal line broken on tornus. Hindwings with 3 and 4 

 connate ; dark grey ; cilia grey-whitish, with grey subbasal line. 



Peru, Lima, in August (Parish) ; three specimens. 



Polychrosis arenacea, n. sp. 



(J $. 11-13 mm. Head, palpi, and thorax ochreous-whitish or 

 whitish-ochreous. Abdomen grey, anal tuft of cJ grey-whitish. 

 Forewings elongate, posteriorly somewhat dilated, costa gently 

 arched, apex obtuse, termen nearly straight, rather oblique; pale 

 ochreous or whitish-ochreous ; costa with whitish strigulae, more or 

 less sprinkled with blackish between them; dorsal edge with very 

 small blackish strigulae ; a more or less develojsed blotch of darker 

 suffusion about fold indicating angle of basal patch ; an oblique rather 

 narrow deeper ochreous or brownish fascia from middle of costa 

 reaching half across wing, and some undefined suffusion towards 



