LEFIDOPTERA HETEROCERA. 171 



Male. White. Front of the head and antennae black. Pro- 

 boscis pale yellowish. Palpi blackish. Femora blackish above ; 

 tibiae and tarsi black. Wings very slightly hyaline ; exterior border 

 brownish beneath. Fore wings with two narrow straight black 

 bands, which slightly converge from the costa to the interior border; 

 first band at one-third of the length, obsolete beneath ; second at a 

 little beyond two-thirds of the length ; costa black. Hind wings 

 with a black band, which extends from rather beyond two-thirds of 

 the length of the costa to near the tip of the interior border ; costa 

 black beneath from the base to the band. Length of the body 

 12 lines ; of the wings 36 lines. 



a. Venezuela. From Mr. Dyson's collection. 



Genus GENUSSA. 



Mas. Corpus vix robustum. Proboscis mediocris. Palpi 

 porrecti, obtusi, caput non superantes ; articulus 2us subtus subfira- 

 briatus ; 3us brevissimus. Antennae subpectinatae, apices versus 

 glabrae. Abdomen fasciculo apicali minimo. Pedes laeves ; tibiae 

 posticae vix incrassatae, calcaribus breviusculis. Alae anticse lata?, 

 elongatae, apice subrotundatae, margine exteriore recto perobliquo ; 

 posticae abdomen superantes. 



Male. Body hardly stout. Proboscis moderately long. Palpi 

 porrect, obtuse, not extending beyond the head ; second joint with 

 a very short fringe beneath ; third extremely short. Antennae 

 slightly pectinated to two-thirds of the length. Thorax much more 

 robust than the abdomen. Abdomen not extending to the interior 

 angle of the hind wings ; apical tuft very small. Legs smooth, 

 moderately long and stout; hind tibiae very slightly incrassated ; 

 spurs rather short. Wings broad. Fore wings elongate, slightly 

 rounded at the tips ; exterior border straight, very oblique. 



Allied to Celerena. 



GENUSSA CELE REN ARIA. 



Mas. Alba; palpi nigricantes, subtus lutei ; antennae nigra; 

 pedes antici nigricantes ; alee fascia marginali nigricante ; 

 anticce linea costali fasciaque nigricantibus, fascia marginali 

 apud apices dilatata. 



Q 2 



