266 Mr. W. Schaus on some 
vein; the rest of the wing pale yellow except a large sub- 
apical irregular brown spot faintly. edged with reddish. 
Secondaries brownish yellow. 
Eixpanse 32 millim. 
Hab. Palanda, Ecuador. 
Robinsonia polyplagia. 
Palpi white, laterally edged with brown and circled with 
brown at joints. Frons, collar, and patagia white, edged with 
brown. ‘Thorax posteriorly fulvous, with a large white dorsal 
spot. Abdomen fulvous. Primaries light brown, streaked 
with white along costa, in cell, and on the inner margin; a 
large oval white spot below median vein near base; a large 
triangular white spot beyond cell and two elongated white 
spots at apex; elongated white spots along the outer margin, 
the spot at inner angle being the largest. Secondaries white. 
Expanse 39 millim. 
Hab. Aroa, Venezuela. 
FTalisidota perdentata. 
Male.—Antennze deeply pectinated. Pale fawn-colour. 
Primaries crossed by indistinct and dentate transverse lines, 
the outer lines geminate; a terminal row of oval spots be- 
tween the veins. Secondaries fawn-colour ; the inner margin 
broadly clouded with slightly darker scales. The female is 
larger, slightly darker, and the subterminal line is very 
deeply angulate; the anal tuft is very large and thick, 
Expanse, ¢ 41, ¢ 55 millim. 
Hab. Orizaba, Mexico. 
Halisidota huaco. 
Frons and vertex brown; thorax buff; abdomen brown. 
Primaries buff, thinly irrorated with dark scales ; the inner 
and outer lines indistinct, dentate, the latter followed by 
a dark shading; a black point at the origin of veins 3, 4, 
and 5; a subapical shade ; subterminal and terminal dark spots 
between the veins. Secondaries whitish, the inner and outer 
margins broadly smoky grey. 
EXxpanse 32 millim. 
Hab. Rio Janeiro, Castro, Parana. 
Halisidota arenacea. 
Head, collar, and abdomen pale ochreous, the thorax and 
abdomen subdorsally at base with still paler hairs; third 
joint of palpi black; a black point on vertex; two black 
