HETEROCEROUS LEPIDOPTEIIA. 35 



cervinis punctis submarginalibus nigris, alis posticis albis semi- 

 hyalinis. 



Male. Cinereous. Head and thorax tinged with pale fawn- 

 colour. Head with a vertical tuft. Palpi hardly ascending, extend- 

 ing much beyond the head ; second joint striped with brown on the 

 outer side, furnished above and below with a short thick fringe ; third 

 lanceolate, very much more slender than the second and less than 

 half its length. Antennae beset with minute tufts of hairs. Abdomen 

 extending for half its length beyond the hind wings ; apical tuft very 

 small. Femora and tibiae broadly fringed; tibiae with four long 

 slender spurs ; tarsi spinose. Fore wings narrow, slightly speckled 

 with black, fawn-colour along the anterior border ; a row of sub- 

 marginal black points ; exterior border very oblique. Hind wings 

 iridescent white, seniihyaline. Length of the body 10 lines ; of the 

 wings 24 lines. 



Genus LIBUNCA. 



Fccm. Corpus robusturn, fere cylindricum. Proboscis valida. 

 Thorax Ia3vis, squamosus. Pectus lanuginosurn. Abdomen alas 

 posticas sat superans. Pedes robusti, leaves ; tibiae anticae subtus 

 fimbriatae ; calcaria longa, valida. Alae anticae longae, sat angustae, 

 apice rotundatae, margine exteriore subconvexo perobliquo. 



Female. Body stout, nearly cylindrical. Proboscis robust. 

 Thorax smooth, squamous. Pectus woolly. Abdomen extending 

 rather beyond the hind wings. Legs stout, smooth; fore tibiae 

 fringed beneath ; spines long, stout. Wings elongate. Fore wings 

 rather narrow, rounded at the tips ; exterior border slightly rounded, 

 very oblique ; first, second and third inferior veins nearly contiguous ; 

 fourth very remote. 



This genus has most affinity to Rhuda. 



59. LIBUNCA ARGENTEA. Fccm. Argenteo-alba, capite et thorace 

 nigro-conspersis, abdomine subtus apicem versus testaceo, alis anticis 

 fusco conspersis et strigatis lineis duabus fuscis transversis angulosis 

 vittis duabus nigris 2a smaragdino conspersa strigis tribus pallide 

 smaragdinis strigis duabus subcostalibus nigris smaragdino conspersis 

 strigis duabus costalibus obliquis albis punctis marginalibus nigris, 

 alis posticis albis subhyalinis fuscescente marginatis. 



Female. Silvery white. Head and thorax black-speckled. Abdo- 

 men testaceous beneath towards the tip. Fore wings speckled and 

 irregularly streaked with brown ; two transverse zigzag brown lines, 

 one antemedial, the other postmedial ; a black stripe extending 

 from the base to the second line, accompanied on its hind side by a 

 short pale emerald-green streak ; a second black stripe extending from 



