LEP1D0PTERA IIETEROCERA. 17 



Male. Body hardly stout. Head with two very prominent 

 frontal tufts. Proboscis moderately long. Antennae slender, fili- 

 form, very minutely serrated and puhesceut. Abdomen hardly ex- 

 tending beyond the hind wings ; apical tuft extremely small. Legs 

 smooth, rather slender; hind tibiae with four long spurs. Wings 

 slightly elongate, moderately broad. Fore wings acute; costa 

 straight ; exterior border convex, hardly oblique in front. 



1. Marisba undulifera. 



Mas. Fusca ; abdomen cinereum ; alee apud marginem exteriorem 

 nigro-fusccE ; anticce lineis plurimis approximatis subundu- 

 latis ; posticcB subtus cinerece. 



Male. Brown. Body beneath and abdomen cinereous. 

 Wings blackish brown about the exterior border. Fore wings 

 with many approximate transverse minutely undulating cinereous 

 lines. Hind wings cinereous beneath. Length of the body 5 lines ; 

 of the wings 1 4 Hues. 



Kio Janeiro. In Mr. Fry's collection. 



Genus 23. MAPETA. 



Mas. Corpus subcylindricum, vix robustum. Frons plana. 

 Proboscis conspicua. Palpi porrecti, laeves, graciles, lanceolati, 

 disjuueti ; articulus 3us 2o paullo brerior. Antennae glabrae. 

 Abdomen alas posticas paullo superans; fasciculus apicalis parvus. 

 Pedes laeves, longiusculi, sat graciles ; tibiae posticae quadrical- 

 caratae. Alse anticae elongatae, latiusculae, vix acutae, costa sub- 

 recta, margine exteriore convexo. 



Male. Body hardly stout, nearly cylindrical. Front flat. 

 Proboscis distinct. Palpi porrect, smooth, slender, lanceolate, apart 

 from each other; third joint a little shorter than the second. An- 

 tennae smooth. Abdomen extending a little beyond the hind 

 wings; apical tuft small. Legs smootb, rather long and slender; 

 hind tibiae with four moderately long spurs. Wings elongate, 

 rather broad. Fore wings hardly acute; costa almost straight; 

 exterior border convex, moderately oblique. 



1. Mapeta xanthomelas. 



Mas. Lcete ochracea ; caput albidum ; oculi nigro cincli ; palpi 

 pedesque nigri subtus albidi ; alee anticce apice albidce venis 

 nigro marginatis ; posticce apice atra. 



C3 



