LEPIDOPTEKA HETEROCERA. 581 



Male. Body smooth, very stout. Proboscis rudimentary. 

 Palpi extremely short. Antennae very broadly pectinated to some- 

 what beyond half the length, serrated from thence to the tips. 

 Abdomen decreasing in breadth from the base to the tip, extending 

 very little beyond the hind wings. Legs short, stout, pilose. Fore 

 wings much prolonged towards the tips, which are very falcate; 

 exterior border hardly convex, moderately oblique. Hind wings 

 somewhat truncated along the interior border. 



The falcate fore wings of this genus distinguish it from Lebeda. 



MUSTILIA FALCIPENNIS. 



Mas. Obscure rufa; caput, pectus et abdomen subtus ochracea ; 

 vertex argenteo-cinereus ; thorax antice oehraceo-rufus ; alee 

 anticce purpurasemte cinereo suffusce, lineis tribus obliquis 

 fuscis apud costam retractis et dilatatis, macula costali lineaque 

 exterior e obliqua nigris, atomis apicalibus albis ; posticce 

 lutece, ferrugineo marginatce, lineis duabus obliquis fuscis, 

 plagu postica pallide cinerea. 



Male. Dark red. Head, palpi, pectus, abdomen beneath, legs 

 and wings beneath mostly ochraceons. Vertex and antennas silvery 

 cinereous ; branches of the latter ochraceons. Thorax ochraceous- 

 red in front ; hind part and most of the fore wings with a purplish 

 cinereous bloom. Fore wings with three brown oblique lines which 

 are acutely retracted towards the costa, where they are dilated ; a 

 black spot near the costa between the first and second lines ; third 

 line partly black ; under side with a black oblique line extending 

 from the disk to the tips, which are white-speckled. Hind wings 

 luteous, broadly and irregularly ferruginous along the interior 

 border, with two brown oblique lines which are indistinct towards 

 the costa ; a pale cinereous patch near the interior angle ; under 

 side with mine strongly marked lines and with a black discal dot. 

 Length of the body 10 lines; of the wings 28 lines. 



Darjeeling. In Mr. Atkinson's collection. 



Genus ANDRACA. 



Mas. Corpus robustum. Proboscis nulla. Palpi porrecti, 

 robusti, brevissimi ; articulus 3us minimus. Antennae breves, late 

 pectinalae, apice subpectinatae. Pectus lanuginosum. Abdomen 

 breviusculum, postice angustatum ; fasciculus apicalis parvus. Pedes 



