LEPIDOPTERA HETEROCERA. 
835 
metallic®, lituiis nullis \ antic® subrotundat®, costa subconvcxa 
margine exteriore valde obliquo. 
Male. Body rather slender. Proboscis short. Palpi short, 
pilose ; third joint acute, declining, much shorter than the second, 
with which it forms an angle. Antenn® rather stout, minutely pu- 
bescent, hardly serrated ; first joint long, robust. Abdomen hardly 
extending beyond the hind wings. Legs smooth ; hind tibi® pilose ; 
spurs moderately long. Wings rather short, somewhat metallic, 
without markings. Fore wings somewhat rounded at the tips, 
slightly convex along the costa ; exterior border very oblique. 
Type, N. congrualis. 
This genus perhaps does not belong to the Hypenidee . 
1. Nachaba congrualis. 
Mas.. Purpurea; abdomen cinereum ; alee sericece, fascia exteriore 
indistincta ochracea , line a marginali alba graciliima ; antic ee 
costa subtus basi fasciculata et incrassata. 
Male. Purple, cinereous beneath. Abdomen cinereous. Wing's 
glossy, with an indistinct ochraceous exterior band ; marginal line 
white, very slender. Fore wings with the costa tufted and somewhat 
mcrassated beneath at the base. Length of the body 3^ lines ; of 
the wings 8 lines. 
Kio Janeiro. In Mr. Fry’s collection. 
2. Nachaba? oppositalis. 
Mas. Cupreofusca ; antennee glabrce , subangulatce ; pedes sat 
validi , tibiis posterioribus fimbriatis ; alee nitentes , fimbria 
x n W ra i untie a apices versus cupreo-rufee , costa media fascicu- 
lata ; postica Icete luteec , margine cupreo-ruf o strigam attenu- 
atam emittente . 
Male. Cupreous-brown. Under side and abdomen cinereous 
brown. Antenn® smooth, the flagellum forming a sligt angle with 
the scape. Legs rather stout ; posterior tibi® fringed. Wings glossy ; 
fringe black, shining. Fore wings cupreous-red towards the tips ; 
costa tufted in the middle. Hind wings bright luteous, with a cu- 
preous-red border, which emits an attenuated streak into the disk ; 
4d 
