LEPIDOPTERA HETEROCERA. 1737 



Genus ARCHANARA. 



Mas. Corpus sat robustum. Caput pilis erectis squainosis 

 vestitum. Proboscis mediocris. Palpi robusti, oblique ascendentes, 

 dense squamoso pilosi, verticem non superantes, articulo 3o lanceo- 

 lato laevi parvo. Antennae setosae, longiusculae. Abdomen alas 

 posticas dimidio superans; fasciculus apicalis compressus, minimus. 

 Pedes longi, sat graciles; calcaria gracilia, longissima. Alae anticae 

 elongatae, latiusculae, apice rectangulatae, margine exteriore sub- 

 obliquo vix arcuato. 



Male. Body moderately stout. Head with short erect squa- 

 mous hairs. Proboscis of the usual length. Palpi stout, obliquely 

 ascending, not rising higher than the vertex ; first and second joints 

 thickly clothed with short squamous hairs; third lanceolate, not 

 more than one-fourth of the length of the second. Antennae setose, 

 rather long. Abdomen extending for half its length beyond the 

 hind wings ; apical tuft compressed, very small. Legs long, smooth, 

 rather slender; spurs slender, very long. Wings elongate, rather 

 broad. Fore wings rectangular at the tips; exterior border hardly 

 rounded, slightly oblique; second inferior vein as near to the third 

 as to the first; fourth very remote from the third. 



Archanara nonogriella. 



Mas. Pallidissime cervina; alee anticce punctis marginalibus 

 pallicle fuscis ; }>osticce cinerece, cervino vix suffusce. 



Male. Very pale fawn-colour, shining. Fore wings with pale 

 brown marginal points. Hind wings cinereous, with a slight tinge 

 of fawn-colour. Length of the body 7 lines ; of the wings 14 lines. 



a. Shanghai. From the collection of the Entomological Society. 



Genus LETOA. 



Mas, Corpus sat gracile. Proboscis brevis. Palpi glabri, 

 graciles, erecti, verticem longe superantes; articulus 2us supra rim- 

 briatus; 3us linearis, 2i dimidio brevior. Antennae glabrae, graciles, 

 longiusculae. Abdomen alas posticas longe superans ; fasciculus 

 apicalis longus, subcompressus. Pedes laeves, longiusculi, sat 

 graciles ; calcaria longa, gracilia. Alae anticae longae, acuta?, margine 

 exteriore subconvexo perobliquo. 



Male. Body rather slender. Proboscis short. Palpi smooth, 

 slender, erect, rising higher than the vertex; second joint fringed 



