LEPIDOPTERA HETEROCEBA. 633 



Genus 11. CYRRHESTA. 



Corpus robustura. Palpi breves, caput paullo superantes ; ar- 

 ticulus 3us minutus. Antennae simplices, corporis dimidio lon- 

 giores. Abdomen alas posticas triente superans. Ala? anticae 

 longs, angustae, apud costam vix convexae, apice acuta?, margine 

 exteriore integro vix obliquo ; posticae subdeutata?? 



Body robust. Palpi short, extending a little beyond the head ; 

 third joint minute. Antennae simple, more than half the length of 

 the body. Abdomen extending for full one-third of its length be- 

 yond the hind wings. Fore wings narrow, long, hardly convex in 

 front, acute at the tips, entire and very slightly oblique along the 

 exterior border. Hind wings with three indentations? along the 

 exterior border. 



1. Cyrrhesta. Nvseus. 



Cervina ; thorax plagis duabus lateralibus cinereis ; alee antica* 

 albce nigro punctata, costa lineisque transversis arcnatis non- 

 nullis testaceis ; posticce subangulatce nigra, basi alba, testaceo 

 ciliatce. 



Phalaena-Noctua Nyssus, Cram, Pap. Exot. i. 119, pi. 75, f. E. 



Surinam. 



Genus 12. NYSTALEA. 



Corpus robustum. Caput fasciculatum. Proboscis mediocri- 

 ter longa. Palpi oblique ascendentes, caput perpaullo superantes; 

 articulus 2ns valde robustus ; 3us gracilis, cylindricus, 2i quadrante 

 non longior. Antennae corporis dimidio vix longiores. Abdomen 

 alas posticas dimidio superans. Pedes validi ; tibiae posticae calca- 

 ribus quatuor longis. Alae anticae longae, angusta?, apud costam vix 

 convexae, apice angulatae, margine exieriore subconvexo perobliquo. 

 Mas. — Antennae subserratae. 



Nystalea, Guen. Noct. ii. 122. 

 Trigonophora, p., Hiibn. Verz. Schmett. 217. 



Body stout. Head with a frontal tuft. Proboscis moderately 

 long. Palpi obliquely ascending, extending very little beyond the 

 head ; second joint very stout: third joint slender, cylindrical, not 

 more than one-fourth of the length of the second. Antenuae full 



