586 
NOCTUID.E. 
Genus GRACIL0P8IS, nov. 
Type, G. guianensis. 
Proboscis fully developed ; palpi upturned, the 2nd joint 
reaching to well above vertex of head and slightly angled 
behind at middle, in male with a thick fringe of scales in 
front and a tuft of hair from the angle behind, in female 
moderately scaled in front and with a few hairs from the 
angle behind, the 3rd joint very long and smoothly scaled ; 
frons smooth, the lower part with a patch of scale-less mem- 
brane edged by scales at sides and a tuft of scales above ; 
eyes large, round ; antennae of male with bristles and cilia ; 
thorax clothed with hair and scales mixed and without 
crests ; tibiae slightly fringed with hair ; abdomen with some 
rough hair at base of dorsum but without crests. Fore 
wing with the costa arched, the apex somewhat produced, 
the termen evenly curved and not crenulate ; veins 3 and 5 
from near angle of cell ; 6 from upper angle ; 9 from 10 
anastomosing with 8 to form the areole ; 11 from cell. Hind 
wing with the cell less than half the length of wing ; veins 
3, 4 from angle ; 5 fully developed from below middle of 
discocellulars ; 6, 7 from upper angle ; 8 anastomosing with 
the cell near base only. . 
Gracilopsis guianensis, n. sp. 
Head, thorax, and abdomen dark reddish brown tinged 
with grey, the head with some white on frons and bars between 
the antennae and on vertex, the antennae whitish above, 
ringed with black towards base, the palpi dark brown, fulvous 
yellow in front and with some white irroration behind, the 
2nd and 3rd joints white at extremities ; fore tarsi ringed 
with white, the mid and hind tibiae at extremities and the 
tarsi white ; genital tufts fulvous yellow. Fore wing dark 
brown tinged with grey ; a curved white subbasal striga 
from costa ; antemedial line white defined on outer side by 
blackish, slightly sinuous and somewhat excurved at middle ; 
a faint sinuous dark medial line ; a curved white discoidal 
striga defined on inner side by black ; postmedial line just 
beyond the cell and almost touching the extremities of the 
discoidal lunule, white defined on inner side by black, slightly 
curved and sinuous ; some white points on apical part of 
costa ; traces of a sinuous dark subterminal line ; two white 
points below costa towards apex and a series of slight white 
striae just before termen. Hind wing dark brown tinged 
with grey ; an oblique white postmedial line, excurved just 
above tornus ; a sinuous dark subterminal line, defined on 
outer side by white below submedian fold ; a black-brown 
