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. 



Expanse 32 niillim. 



Hub. Palanda, Ecuador. 



Robinsoina polyplagia. 



Palpi white, laterally edged with brown and circled with 

 brown at joints. Frons, collar, and patagia white, edged with 

 brown. Tiiorax 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 millira. 



Hah. Aroa, Venezuela. 



Halisidota 'perdeniata. 



Male. — Antenna? 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 ; tlie 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, $ ^\^ ? 55 millim. 



Hah. 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. 



Expanse 32 millim. 



Hah. Kio 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 



