LEPIDOPTERA HETEROCERA. 635 



2i triente aut dimidio non brevior. Antennae simplices, graciles. 

 Alae anticae lanceolatoe, apud costam subconvexae, apice acuminata?. 



Body moderately stout. Head with a frontal tuft sloping 

 backward. Palpi ascending, almost vertical ; third joint cylindri- 

 cal, one-third or one-half of the length of the second. Antennae 

 simple, slender, about half the length of the body. Wings lanceo- 

 late, slightly convex in front, acuminated at the tips, very oblique 

 along the exterior border. 



3. Nystalea superciliosa. 



Ferrugineo-fusca ; alee anticce lineis lanceolatis, puncto discali, 

 strigis transveisis exterioribus lineaque submarginali subdu- 

 plicata undulata nigris aut nigro-fuscis, plaga exteriore trans, 

 versa indistincta ferruginea fusco lineata ; posticus albida, 

 margine latissimo ferruginoso, ciliis albidis. 



Nystalea superciliosa, Gnen. Noct. ii. 123, 846. 



Cayenne. 



a. St. Domingo. From M. Becker's collection. 



b, c. St. Domingo. From Mr. Tweedie's collection. 



4. Nystalea ltneiplena. 



Pallide ligno-fusca ; abdomen cinerascens ; alee anticce lineis stri- 

 gisque variis nigris, purpurascente-ciuereo ex parte nebulosa, 

 guttis duabus discalibus nigris ; posticm albidce, iridescentes, 

 semihyalina, margine lato fusco, ciliis sordide albidis. 



Pale ligneous brown. Abdomen more cinereous. Fore wings 

 with various black lines and streaks, partly shaded with purplish 

 cinereous ; two black dots, one behind the other in the disk. Hind 

 wings whitish, iridescent, semihyaline, with broad brown borders ; 

 I cilia? dingy whitish. Length of the body 12 lines ; of the wings 25 

 lines. 

 a. Para. From Mr. Johnson's collection. 



5. Nystalea guttiplena. 



Fuscescente-cinerea ; ala? antica? fusco subconspersa, lituris costa- 

 libus transversis fuscis, maculis duabus discalibus guttisque 

 exterioribus submarginalibus et marginalibus nigris, strigis 

 submarginalibus fuscis ; posticus iridescentes, semihyalina, 

 venis margineque lato fuscis, ciliis albidis. 



