KEY TO TaE FAMILIES. 



19 



Hind wing with vein 1 c present **■. 

 [^. Wings divided into plumes t. 

 d^. Fore wing divided into at most four 



plumes 47. Pterophoridae, 



b^. Fore wing divided into six plumes ... 46. Orneodidae. 

 i'^ Wings not divided into plumes J. 



(vK Hind wing with vein 8 absent 48. Sesiadae. 



b^. Hind wing with vein 8 anastomosing 



with or closely approximated to 7 ... 4o. Pyralidae. 

 c^. Hind wing with vein 8 remote 

 from 7. 

 a*. Hind wing with \Qm 8 coincident 

 with the cell to middle or near 



extremity ; palpi absent 28. Megalopygidae. 



i'. Hind wing with vein 8 anastoniosing 

 with the cell ; palpi present. 



a\ Frenulum absent 2(i. Chrysopolomidae, 



6'. Frenulum preeent 29. Limacodidae. 



c*. Hind wing with vein 8 free or con- 

 nected with the cell by a bar. 

 a^. Middle spurs of hind tibia? very 

 siiort or absent. 

 a^. Proboscis absent. 

 a~ . Fore wing with vein 1 c 

 absent, 

 a**. Frenulum absent. 



«**. Fore wing With vein 9 

 stalked or connected 

 with 8 ; larvce wood- 

 borers 20. Arbelidae. 



b^. Fore wing with vein 

 9 widely separated 

 from 8 ; larvie case- 

 dwellers 27. Perophoridae. 



a^ Frenulum present 21. Argyrotypidae. 



h'' . Fore wing with vein 1 c 

 present. 



fl**. Frenulum absent 22. Ratardidae. 



b^. Frenulum present. 

 a^. Female winged. 



a^^. Larva? wood-borers ; 

 abdomen extending 

 beyond hind wing ... 2.'3. Cossidae. 

 6'*^. Larvae free ; hind 

 wing extending be- 

 yond abdomen 30. Dalceridae. 



h^. Female wingless. 



a^°. Female and larvae 



case-dwellers 18. Psychidae. 



6'^. Female and larva 



free 19. Heterogynidae. 



* Sometimes absent in the subfamily Epiblonina of the TortruiJip, and in 

 some TineidcB. 



t Except in Agdisfis. 



^ Except in Cenoloba and an allied Pvralid genus of HydrocampirKB. 



C2 



