390 



NOVITATES ZOOIOOIOAB XXV. 1918. 



b'. Hindwing with vein l.c present.* 

 a-. Wings divided into plumes.t 



a'. Forewing divided into at most four plumes 



b'. Forewing divided into six plumes ..... 



b^. Wings not divided into plumes.t 

 a'. Hindwing with vein 8 anastomosmg with or closely approxi- 

 mated to vein 7 ....■•• • 



b'. Hindwing with vein 8 remote from 7. 



a'. Hindwing with vein 8 coincident with the cell to middle or 

 to near its extremity ; palpi absent .... 



h'. Hindwing with vein 8 anastomosing with the cell ; palpi 

 present. 

 a^. Frenulum absent ....... 



b'. Frenulum present ....... 



c'. Hindwing witli vein 8 free, or coimected with the cell by a bar. 

 a'. Middle spurs of hind tibiae very short or absent, 

 a'. Proboscis absent, 

 a'. Forewing with vein l.c absent, 

 a'. Frenulum absent. 



a°. Forewing with vein 9 stalked or couicident with 

 8 ; larvae wood-borers .... 



b'. Forewing with vein 9 widely separated from 8 ; 

 larvae case-dwellers ..... 



b'. Frenulum present ...... 



i)'. Forewing with vein l.c present, 

 a' Frenulum absent ...... 



b'. Frenulum present, 

 a". Female winged, 

 a'". Larvae wood-borers ; abdomen extending to 

 beyond the hindwing .... 



b'". Larvae not wood-borers ; abdomen not ex- 

 tending to beyond the hindwing 

 b^. Female wingless. 



a'". Female and larvae case-dwellers . 

 b". Female and larvae not case-dwellers . 

 b*. Proboscis present. 

 a'. Antennae clubbed ; hindwing with vein 7 diverging 

 from the cell from base ..... 



b' Anteimae filiform or terminally dilated ; hindwing 

 with vein 8 approximated to the cell and comiected 

 with it by a bar ...... 



b^. Middle spurs of hind tibiae, or at least one, well developed. 



a". Palpi with the 1st joint as long or nearly as long as the 



2nd (the male with the palpi more or less strongly 



recurved), those of female more or less strongly porrect. 



b«. Palpi with the 1st joint much shorter than the 2nd 



joint. 



a'. Antennae of both sexes bipectinate (more strongly in 



the female than the male) ; forewing with vein 



7 separate, 8, 9 stalked and 10 absent or 9, 10 



stalked and 8 separate ..... 



b'. Antennae not bipectinate in both sexes, or if bipec- 

 tinate in female the forewing with veins 7 to 10 

 separate. 



52. Alucitidae 

 51. Orneodidae 



50. Pyralidae 

 33. M egalopygidae 



31. Ectropidae 

 34. Helerogeneidae 



25. Teragridae 



32. Perophidae 

 26. Chrysotypidae 



27. Hypoptidae 



28. Cossidae 



35. Acragidae 



23. Psychidae 

 24. Epicnopterygidae 



37. Castniadae 



46. Zygaenidae 



85. Acrolophidae 



81. Parathyrididae 



* Sometimes absent by asthenogenesis in some genera of the Eucoamidae and the leaf-mining 

 Microlepidoptera. 



t Except in Aydislia. % Except in Cemloba and Oxychirola. 



