LEPIDOPTERA HETEROCERA, 1183 



graciles ; calcaria longa, gracilia. Alae elongatae, sat angustae ; 

 anticae falcatae, acuta?, margine exteriore subflexo. 



Male. Body slender. Frontal tuft prominent, obtuse. Pro- 

 boscis short. Palpi obliquely ascending, not rising higher than the 

 vertex, most densely tufted along the whole length beneath ; third 

 joint very short. Antennae stout, smooth. Abdomen lanceolate, 

 extending much beyond the hind wings ; apical tuft small, 

 slightly compressed. Legs smooth, slender; spurs long, slender. 

 Wings elongate, rather narrow. Fore wings falcate, acute ; exterior 

 border slightly bent in the middle, its hind part very oblique ; third 

 inferior vein remote from the first and second, which are connected 

 at the base ; fourth remote from the third. 



Lambana cucullatalis. 



Mas. Subcervino-cinerea ; alee anticce vitta costali cervina, strigis 

 nonnullis costalibus obliquis pallide cinereis, lineis duabus 

 cervinis obliquis subrectis, puncto apicali guttaque apud angu- 

 lum inter iorem nigris. 



Male. Cinereous, with a tinge of fawn-colour. Fore wings with 

 a fawn-coloured costal stripe, which is diffuse towards the disk, and 

 with some slender oblique pale cinereous costal streaks; two slender 

 oblique nearly straight fawn-coloured lines; a black apical point 

 and a black dot on the interior angle. Length of the body 4 lines ; 

 of the wings 9 lines. 



a. Ega. From Mr. Bates' collection. 



Genus ARXAMA. 



Fcem. Corpus sat rohustum. Proboscis nulla. Palpi arcuati, 

 graciles, verticem superantes ; articulus 2us subfimbriatus ; 3us 

 lanceolatus, 2o vix brevior. Palpi maxillares porrecti, graciles, 

 lanceolati, breves. Antennae robustae. Abdomen alas posticas 

 paullo superans. Pedes glabri, sat validi ; calcaria longa. Alae 

 anticae latae, acutae, margine exteriore convexo subobliquo. 



Female. Body rather stout. Proboscis obsolete. Palpi 

 curved, slender, rising higher than the vertex, very much longer 

 than the breadth of the head ; second joint with a very short fringe 

 beneath ; third lanceolate, nearly as long as the first. Maxillary 

 palpi porrect, slender, lanceolate, about one-third of the length of 

 the labial palpi. Antenuae stout. Abdomen extending a little 



G2 



