LEPIDOPTEEA HETEROCEKA. 1765 



Genus ISNISCA. 



Alas. Corpus robustum. Frons plana. Proboscis valida. 

 Palpi porrecti, brevissimi, articulo 3o minimo. Antennae late pec- 

 tinatae, apice simplices. Pedes laeves, robusti, breviusculi; tibiae 

 posticae calcaribus longissimis. Alae densae ; arnica? acuta?, costa 

 basi subconvexa, margine exteriore subflexo antice subconcavo ; 

 posticae apice subtruncatae. 



Male, Body stout. Front flat. Proboscis robust. Palpi 

 porrect, very short, not extending beyond the head; third joint 

 extremely short and small. Antennae broadly pectinated, except at 

 the tips. Abdomen extending a little beyond the hind wings. Legs 

 stout, smooth, rather short ; hind tibiae with four very long spurs. 

 Wings stout, rather small. Fore wings acute; costa very slightly 

 convex towards the base; exterior border slightly bent in the middle, 

 slightly concave in front, straight hiudward. Hind wings slightly 

 truncated at the tips. 



Allied to Osicerda. 



ISNISCA CYCLOGONATA. 



Mas. Rufescente-cervina ; alee subtus rufescentes ; anticce lineis 

 duabus cinereis angulosis indistinct.is ; posticce antice och- 

 racece, linea apud marginem interior 'em fusca flex a. 



Male. Reddish fawn-colour. Wings reddish beneath. Fore 

 wings with two zigzag, very indistinct cinereous lines. Hind wings 

 ochraceous in front, with a bent brown line towards the interior bor- 

 der. Length of the body 5 lines; of the wings 12 lines. 



a. Hindostani Presented by Sir J. Hearsay. 



Genus MENDA. 



Mas. Corpus sat robustum. Proboscis brevis. Palpi porrecti, 

 caput paullo superantes, articulo 3o longi-couico. Antennae pec- 

 tinatae, breviusculae. Thorax crassus. Abdomen fasciculo apicali 

 longiusculo. Pedes laeves, breviusculi; tibiae posticae calcaribus 

 quatuor longissimis. Alae latae ; anticae elongatse, apice truncatae, 

 margine exteriore subangulato, margine interiore convexo, venis 

 posticis distortis; posticae dilatatae, margine exteriore subangulato 

 vix dentato. 



