LEPIDOPTERA HETEROCERA. 1087 



Genus 68. SIDANA. 



Mas. Corpus sat gracile. Proboscis longa. Palpi validi, 

 porrecti, pilosi, caput non superantes ; articulus 3us conicus, mini- 

 mus. Antennas latissime pectiuatae, thorace non longiores. Abdo- 

 men alas posticas paullo su'perans. Pedes longiusculi, sat graciles ; 

 tibiae posticae calcaribus quatuor longis. Alas longiusculae, medio- 

 criter latae ; anticae.apud costam rectae, apice angulatae, margine 

 exteriore postico perobliquo. 



Male. Body rather slender. Proboscis long. Palpi porrect, 

 stout, pilose, not extending beyond the head ; second joint much 

 longer than the tirst ; third conical, very minute. Antennae very deeply 

 pectinated, not longer than the thorax. Abdomen extending lor 

 one-fourth of its length beyond the hind wings. Legs rather long 

 and slender ; hind tibiae with four long spurs. Wings moderately 

 broad, rather long. Fore wings straight in front, nearly rectangular 

 at the tips, very oblique along the hinder part of the exterior bor- 

 der ; interior angle extremely obtuse ; three inferior veins ; second 

 full four times further from the third than from the first. 



1. SlDANA BIFACIES. 



Mas. Cervina ; thorax antice nigro fasciatus ; pectus et abdomen 

 testacea, hoc subtus albidum; pedes albidi, antici fulvi-fusco 

 vittati ; alee antica nigro maculatce, postica albce fusco mar- 

 ginatce. 



Male. Fawn-colour. Proboscis and antennae tawny. Thorax 

 with a blackish band in front. Pectus testaceous. Abdomen tes- 

 taceous, whitish beneath. Legs whitish ; fore legs tawny, striped 

 with dark brown. Fore wings with diffuse blackish marks, and 

 with three more distinct black discal spots ; under side much paler. 

 Hind wings white, with brownish borders. Length of the body 1\ 

 lines; of the wings 18 lines. 



Kio Janeiro. In Mr. Fry's collection. 



Genus 69. PARATHYKIS. 



Corpus sat validum. Proboscis non conspicua. Palpi validi, 

 breves, porrecti, pilosi, caput non superantes; articulus 3us mini- 

 mus. Antennae thorace non longiores. Abdomen alas posticas 

 triente superans. Pedes validi, pilosi ; tibiae late ciliatae, posticas 



2e2 



