LEPJDOPTEBA HETEROCERA. 921 



Mas. Corpus robustum dense pilosurn. Caput antice promi- 

 nulum. Palpi sat validi, subascendentes, caput non superantes ; 

 articulus lus brevissimus ; 3us minutus, conicus. Antennae sat late 

 pectinatae. Abdomen alas posticas non superans. Pedes validi i 

 pilis longis dense vestiti ; tibiae posticas calcaribus quatuor longis. 

 Alae latae, dense vestitae ; anticae apud costara rectae, apicerotundata?. 



Male. Body stout, thickly pilose. Head rather prominent in 

 front. Palpi rather stout, slightly ascending, not extending beyond 

 the head ; first joint very short ; third minute, conical. Antennas 

 rather deeply pectinated. Abdomen not extending beyond the 

 hind wings. Legs stout, thickly clothed with long hairs ; hind 

 tibiae with four long spurs. Wings broad, thickly clothed. Fore 

 wings straight in front, rounded at the tips, slightly oblique and 

 nearly straight along the exterior border, which forms a continuous 

 curve with the interior border ; second inferior vein nearer to 

 the first than to the third and fourth, which spring from a short com- 

 mon petiole ; the fourth is joined near its tip to the fore branch of 

 the submedian, which is forked. 



1. Perola murina. 



Mas. Murina ; antenna nitentes ; alee anticce subtus posticaque 

 panllo pallidiores. 



Male. Mouse-colour. Antennae, fore wings beneath and hind 

 wings rather paler. Wings shining. Length of the body 9 lines ; 

 of the wings 25 lines. 



a. Rio Janeiro. From Mr. Stevens' collection, 



Genus PANDALA. 



§ Alae posticae abdomen non superantes. - Repena, Sarsina. 

 §§ Alee posticae abdomen longe subtus superantes. Pandala. 



Mas. Corpus gracile. Palpi pilosi, sat validi, subascendentes, 

 caput sat longe superantes ; articulus lus brevis ; 3us conicus, mi- 

 nimus. Antennae latissime pectinatae, thorace multo longiores. 

 Pedes graciles ; tibiae posticae calcaribus quatuor longis. Alae lata? ; 

 anticae apud costam vix convexae, vix angulosae ; posticae abdomen 

 longe superantes. 



Male. Body slender. Palpi rather stout, pilose beneath, 

 slightly ascending, extending some distance beyond the bead ; first 



PART TV. 



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