324 
NOCTUID.E. 
red-brown with a silvery leaden gloss. Underside of fore wing 
red -brown, the apical part of costal area and the terminal 
area paler ; hind whig ochreous suffused with red-brown, a 
curved brown postmedial line and rather diffused subterminal 
line. 
The lateral claspers are long, curved keel-shaped with a 
series of upright processes above like feathers just emerging 
from the quill. 
$. Fore wing with the medial area paler, the oblique line 
from lower angle of cell slight and without the brown shade 
before it ; hind wing without the silvery leaden gloss ; 
underside ochreous suffused with red-brown and irrorated 
with dark brown. 
Flab. Panama, La Chorrera (Dolby -Tyler), 1 type ! 
Br. Guiana, Rockstone (Kaye), 1 $. Exp. 18 millim. 
Tympanobasis tumidioosta, n. sp. 
d 1 . Head, thorax, and abdomen ochreous suffused with 
red-brown, the patagia with a few dark brown scales ; antennae 
grey-brown ; palpi red-brown slightly irrorated with whitish ; 
pectus, legs and ventral surface of abdomen whitish tinged 
with red-brown, the fore legs redder brown with the tibiae 
ringed with white, the tarsi dark brown ringed with white. 
Fore wing ochreous suffused with red-brown especially on 
terminal half ; subbasal line red-brown, minutely waved, 
from costa to the fovea which is whitish ; antemedial line 
double, red -brown, obliquely curved and minutely waved ; 
reniform defined by red-brown with some white scales on its 
edges, rather narrow ; medial line red-brown, oblique and 
sinuous to the reniform, slightly waved beloiv the cell ; post- 
medial line double, browm filled in with whitish, bent out- 
wards below' costa, then obliquely excurved to vein G near 
the subterminal line, incurved below vein 3 and angled 
inw'ards above inner margin ; the apical part of costal area 
white with some oblique red -brown bars from costa ; an 
indistinct brown subterminal line, obsolete tow-ards costa, 
slightly excurved at vein 6 and incurved above vein 1 ; a 
dark terminal line ; cilia red-brown. Hind wing w hitish 
suffused with red-brown ; some dark scales on inner margin 
towards tornus and a dark point on termen at vein 1 . Under- 
side of fore wing red-brown, the inner area whitish ; hind wing 
white, the costal area suffused and irrorated with red-brown, 
an indistinct curved red-brown postmedial line from costa 
to vein 2. 
Hab. Peru, Cuzco Mts. ( Garlepp ), 1 type. Exp. 16 
millim. 
