LEPIDOPTERA HETEROCERA. 747 



poslica lalissima orbicularis reniformi strigaque subapicali lata 

 arcuata obscure ferrugineo-f us cis ; posticce lutece, gutta discali 

 fasciaque submarginali excavata abbreviata nigris. 



Male. Dark ferruginous-brown, luteous beneath. Abdomen 

 luteous, with a black spot on each segment. Fore wings cinereous 

 fawn-colour ; a very broad dark ferruginous-brown stripe along the 

 interior border, including an oblong dark cinereous spot; orbicular 

 and re ni form marks large, dark ferruginous-brown, cinereous- 

 bordered ; a broad curved oblique subapical streak of the same hue. 

 Hind win«rs luteous, with a black discal dot and a black excavated 

 abbreviated submarginal baud. Length of the body 9 lines ; of the 

 wings 24 lines. 



Darjeeling. In Mr. Atkinson's collection. 



Genus ARIATHISA. 



Mas. Corpus crassum. Proboscis brevis. Palpi validi, 

 pubescentes, oblique ascendentes, caput non superantes; articulus 

 3us conicus, minimus. Antennae robustae, subsetulosae. Abdomen 

 alas posticas superans, fasciculis duobus basi lateralibus incurvis ; 

 fasciculus apicalis brevissimus. Pedes validi, pilosi ; tibiae posticae 

 calcaribus quatuor elougatis. Alee antieae apice subrotundatae, mar- 

 gine exteriore convexo vix obliquo. 



Male. Body very stout. Proboscis short. Palpi obliquely 

 ascending, stout, pubescent, not rising so high as the vertex ; third 

 joint conical, very minute, less than one-eighth of the length of the 

 second. Antennae stout, very minutely setulose. Abdomen extending 

 somewhat beyond the hind wings ; apical tuft very short. Legs 

 stout ; femora and tibiae pilose ; hind tibiae with four long slender 

 spurs. Wings moderately broad. Fore wings slightly rounded at 

 the tips ; exterior border convex, hardly oblique. 



The broad short palpi and the lateral tufts at the base of the 

 abdomen distinguish this genus from the other Hadenidce. 



Ariathisa atrosignata. 

 Mas. Cinerea ; caput cervinum ; palpi nigri, subtus apiceque albidi; 

 abdomen basi apiceque cervinum ; alee anticce ceneo-fmcce^fasciis 

 duabus cinereis nitentibus, lineis duabus nigricantibus denticu- 

 latis, litura media excavata atra, lituris tribus costalibus punc- 

 tisque marginalibus nigris, linea submarginali nigricante 

 angulosa, macula apicali cinerea ; posticce cinerece f subceneo 

 marginatce. 



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