LEPIDOPTEBA HETEROCERA. 1911 



Halesidota MONOCHROMA. 



Mas. Ochracea ; palpi suberecti, articulo So lanceolato ; antenna 

 nigra, serratce ; pedes Iceves, tibiis tarsisque anteriuribus supra 

 nigris ; aloe long 'ce,angustce. 



Male. Ochraceous. Palpi slender, nearly erect, not rising 

 higher than the vertex; third joint lanceolate, not more than one- 

 fourth of the length of the second. Antennas black, serrated, ochra- 

 ceous at the hase. Abdomen extending rather beyond the hind 

 wings. Legs smooth ; anterior tibia? and tarsi black above. Wings 

 long, narrow. Fore wings rounded at the lips; exterior border 

 convex, extremely oblique ; fourth inferior vein very remote from the 

 third. Length of the body 8 lines ; of the wings 28 lines. 



Bogota. In Mr. Birchall's collection. 



Halesidota argenttfera. 



Mas. Argenteo-alba; caput nigrieante fasciatum ; palpi graciles, 

 ascendentes, articulo So lanceolato; thorax glaber ; abdomen 

 pilis longis flavo-albis vestitum ; tibice anticce supra nigri- 

 cantes ; alee longce, angustce. 



Male. Silvery white. Head with a blackish band between the 

 antenna?. Palpi smooth, slender, closely applied to the head, not rising 

 higher than the vertex; third joint lanceolate, less than half the 

 length of the second. Antenna? slender, finely setulose. Thorax 

 very smooth. Abdomen extending a little beyond the hind wings, 

 thinly clothed with long yellowish white hairs. Legs smooth, stout ; 

 tarsi tawny, pilose; fore tibia? blackish above. Wings long, narrow. 

 Fore wings acute ; exterior border slightly convex, very oblique. 

 Length of the body 8 lines ; of the wings 26 lines. 



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



Halesidota monoleuca. 



Mas. Argenteo-alba ; caput cervinum ; palpi cervini, erecti, articulo 

 So lanceolato ; antennce subpeetinatce ; abdomen alas posticas 

 sat superans,fasciculo apicali minimo ; pedes robusti, tibiis 

 tarsisque anticis nigricantibus. 



Male. Silvery white. Head fawn-colour, except the hind 

 border. Palpi fawn-colour, smooth, slender, erect, not rising higher 



2k3 



