LEP1D0PTERA HETEROCERA. 
17 
Male. Body hardly stout. Head with two very prominent 
frontal tufts. Proboscis moderately long. Antennae slender, fili- 
form, very minutely serrated and pubescent. 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 linen plurimis approximatis subundu- 
latis ; posticce subtus cinerece. 
Male. Brown. Body beneath and abdomen ciuereous. 
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 lines. 
Bio Janeiro. In Mr. Fry’s collection. 
Genus 23. MAPETA. 
Mas. Corpus subeylindrieum, vix robustum. Frons plana. 
Proboscis conspicua. Palpi porrecti, lteves, graciles, lanceolati, 
disjuncti ; articulus 3us 2o paullo brevior. Antennae glabrae. 
Abdomen alas posticas paullo superans; fasciculus apicalis parvus. 
Pedes laeves, longiusculi, sat graciles ; tibia? posticae quadrical- 
caratae. Alte 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 smooth, 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 cincti ; palpi 
pedesque nigri subtus albidi ; alee anticce apice albidce venis 
nigro marginatis ; posticce apice a tree. 
c 3 
