12 SATURNIID^E. 



6'. Hind wing with vein 8 free. 

 a 2 . Fore wing with vein 1 b simple or 

 with a very minute fork at base 

 6 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 .... 



b'. Fore wing and hind wing each 



divided into throo plumes ........ 34. Alucitidae. 



0. Tinaegeriidae. 

 32. Tineidae. 



33. Pterophoridae. 



Family SATURNIIDJE. 



Large crepuscular-flying moths. Proboscis absent; palpi 

 minute. Antennae bipectinated in both sexes, the branches long 

 in (5 1 , longest at middle and diminishing to base and apex. Legs 

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

 at base ; 1 c 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. 



Larvas 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 paphia. }. (From Moore, Lep. 

 Cevl. 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. ATTACUS, p. 15. 



b'. The cell of both wings closed. 



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

 from base. 



