LEPIDOPTERA HETEROCERa. 917 



superans. Pedes validi ; tibiae anticaa subtus uuidentatae, posticae 

 calcaribus apicalibus minimis. Alae longae, angustae; posticae ad 

 costam valde convexae. Mas. — Antennae latissimepectinatae,thorace 

 multo longiores. Fcem. — Antennae simplices. 



Male and fern. Body rather long and stout. Proboscis 

 very short or none. Palpi porrect, long, bare, extending some dis- 

 tance beyond the head ; second joint much longer than the first ; 

 third lanceolate, slender, about half the length of the second. Tho- 

 rax thickly clothed with long hairs. Abdomen long, slightly tapering, 

 extending for half its length beyond the hind wings. Legs stout, 

 especially the fore pair; fore tibiae armed beneath with a stout 

 tooth; hind tibiae with very minute apical spurs. Wings long and 

 narrow. Fore wings full twice the length of the hind wings ; fore 

 border straight; discal fold almost obsolete; two superior veins; 

 first and second inferior veins united at the base ; third rather 

 nearer to the second than to the fourth. Hind wings rather short, 

 very convex in front, with three inferior veins. Male. — Antennae 

 very deeply pectinated, much longer than the thorax. Female. — 

 Antennae simple. 



1. Apisa canescens. 



Mas. Albida ; caput, palpi et pedes fusca ; abdomen basi et sub- 

 tus albidum. 



Male. Whitish. Body, palpi and legs brown. Antennae 

 with tawny branches. Abdomen whitish beneath and at the base. 

 Legs partly clothed with whitish hairs. Length of the body 7 — 11 

 lines; of the wings 18 — 26 lines. 



a — d. South Africa. From Mr. Argent's collection. 



