12 



SATURNIID.E. 



b'. Hind wing with vein 8 free. 



a 2 . Fore wing - witli vein 1 b simple or 



with a very minute fork at base 



b 2 . Fore-wing vein 1 a forming a 



large fork with 1 b at base .... 



b. Wings divided into plumes. 



a'. Fore wing divided into at most two ; 



hind wing into three plumes .... 



V '. Fore wing and hind wing each 



divided into three plumes ........ 



9. Tinaegeriidae. 

 32. Tineidae. 



33. Pterophoridae. 



34. Alucitidae. 



Family SATURNIIDiE. 



Large crepuscular-flying moths. Proboscis absent ; palpi 

 minute. Antennae bipectinated in both sexes, the branches long 

 in c? , longest at middle and diminishing to base and apex. Legs 

 short, hairy, and without spurs. Fore wing with vein 1 b forked 

 at base; lc absent; the discocellulars (when present) emitted 

 from vein 5, which is stalked with 6 ; veins 10 and 11 absent. 

 Hind wing without a frenulum ; a precostal vein slightly deve- 

 loped : the discocellulars emitted from vein 5, which is stalked 

 with 6 ; one internal vein. 



Larva; smooth, with spiniferous tubercles, dorsal humps, long 

 fleshy spinous processes, or small warts ; and forming cocoons, 

 those produced by several of the species giving the Tussur silks of 

 commerce. 



Fig. 7. — Larva of Anthercea papkia. -}-. (From Moore, Lep. 

 Ceyl. ii, pi. 125, fig. 1 b.) 



Key to the Genera. 



a. Hind wing with anal angle produced into a 



long tail 1. Actias, p. 13. 



b. Hind wing with anal angle not produced into 



a tail. 



a'. The cell of both wings open 2. Attactjs, p. 15. 



b'. The cell of both wings closed. 



a 2 . Veins 5 and 6 of both wings given off far 

 from base. 



