TYMPAXOBASIS. 
323 
ventral surface of abdomen whitish suffused with red-brown, 
the tarsi dark brown ringed with white. Fore wing grey- 
brown with a reddish tinge, the basal area darker brown ; 
a curved white mark at base from costa to submedian fold, 
with a white point beyond it in the cell and a short down- 
curved streak below the cell ; the fovea pale ; antemedial 
line slight, white, angled inwards in the cell and oblique 
towards inner margin ; orbicular and reniform very large, 
Avith very fine white annuli defined by black-brown scales, 
the former elongate elliptical, the latter rather quadrate and 
slightly angled inwards at median nervure ; postmedial line 
fine, black-brown, slightly defined on inner side by whitish, 
strongly bent outwards below costa, then oblique to discal 
fold and inwardly oblique below vein 4, with some rufous 
on its outer edge from below costa to vein 4, then whitish 
defined on outer side by a black line, some white points 
beyond it on costa ; a slight waved whitish subterminal line 
closely approximated to the postmedial line except towards 
costa ; a series of slight black striae defined on inner side by 
white before termen. Hind wing dark brown with a cupreous 
gloss. Underside dark reddish brown, the inner areas whitish. 
Hab. Paraguay, Sapucay (Foster), 1 £ type. Exp. 26 
millim. 
Tympanobasis pterogoneis, n. sp. 
o- Head and thorax ochreous white tinged with rufous, the 
prothoracic crest and tips of patagia dark red-brown ; 
abdomen ochreous white mixed with dark red-brown, espe- 
cially at sides ; antennae black- brown ringed with whitish 
towards base ; palpi and legs red-brown ; the tarsi dark brown 
with pale rings. Fore wing ochreous white tinged with rufous 
and irrorated with a few black scales, the terminal area 
suffused with brown ; the base and antemedial area brown 
to vein 1, the fovea pale with a minute black spot above it ; 
orbicular and reniform slightly defined by black, the former 
round, the latter somewhat angled inwards at median nervure ; 
an oblique rather diffused dark brown line from lower angle 
of cell to inner margin with a brown shade before it ; post- 
medial line double, dark brown filled in with whitish, strongly 
bent outwards below costa, excurved and slightly waved to 
vein 4, then incurved, some pale points with red- brown 
between them beyond it on costa ; subterminal line slight, 
brown, closely approximated to the postmedial line except 
at costa, with minute dentate black marks before it from 
below costa to vein 4, then oblique ; the apical part of termen 
pale with slight dark streaks on the veins ; a terminal series 
of dark strise ; cilia dark red-brown. Hind wing dark 
t 2 
