LEPIDOPTERA HETEROCERA. 1753 



brown ; a diffuse broad brown submarginal band. Fore wings acute, 

 witb the first band extremely dilated in front; costa straight; 

 exterior border slightly convex, very oblique. Hind wings with the 

 exterior border hardly bent. Length of the body 8 lines ; of the 

 wings 20 lines. 



Sarawak. In Mr. Saunders' collection. 



THALERA ? S U BTRACTATA. 



Foem. Alba; caput et thorax anticus iestacea; palpi graciles, 

 subangulati, capitis latitudine vix brtviores, articulo 3o lan- 

 ceolato ; alee fasciis dvabus obliquis rectis angvlosis virides- 

 cenlibus ; anticce subelongata, vix acuta?, costa subconvexa ; 

 postica lata, mar gin e exteriore angulato. 



Female. White. Head and fore part of the thorax testaceous. 

 Palpi slender, slightly angular, nearly as long as the breadth of the 

 head ; third joint lanceolate, shorter than the second. Wings with 

 two greenish oblique straight zigzag bands. Fore wings slightly 

 elongate, hardly acute ; costa and exterior border slightly convex, 

 the latter rather oblique. Hind wings broad, extending beyond the 

 abdomen ; exterior border very acutely angular in the middle. 

 Length of the body 4 lines ; of the wings 12 lines. 



a. Hindoslan. From Archdeacon Clerk's collection. 



Genus ALEX. 



Mas. Corpus gracile. Fasciculus frontalis productus, acutus. 

 Oculi magni. Proboscis longiuscula. Antennae longae, graciles, 

 subpectinatae. Abdomen longum ; fasciculus apicalis elongatus. 

 Pedes laeves, longi, graciles. Alae amplae ; anticse subacutae ; posticae 

 latissimae. 



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

 boscis rather long. Eyes large, prominent. Antenna? long, slender, 

 very slightly pectinated. Abdomen long; apical tuft elongate. 

 Legs smooth, long, slender; hind tibia? with the first pair of spurs 

 much longer than the second. Wings ample. Fore wings slightly 

 acute; costa straight ; exterior border almost straight, moderately 

 oblique. Hind wiugs very large, extending beyond the abdomen; 

 exterior border convex; interior angle prominent. 



Allied to Rhamidava. 



