430 



PYRALIDINA 



legs are very long and unusually slender ; the outer tibial spurs 

 are almost as long as the inner, except in Agdistis and some 

 species of Alucita. In the genera with cleft wings veins 5 and 

 6 are necessarily extremely short, but always present. 



Ovum more or less oval, smooth. Larva rather short, with 

 more or less developed fascicles of hairs. Pupa sometimes 

 hairy, attached by tail or in a slight cocoon above ground. 



The phylogeny is expressed in the diagram. 



Phylogeny of Pterophoridae. 



Triclioptilus 



I 

 Oxyptilus Pterophorus Marasmarcha 



Platyptilia Pselnopliorus 



Alucita 

 I 



Stenoptilia Agdistis 



X 



Tabulation of Genera. 



Wings entire . . . .9. Agdistis. 



,, fissured . . . . .2. 



Hindwino-s with black scale-tooth in dorsal cilia . 3. 



,, without black scale-tooth 



3. Forewings with 7 and 9 absent . 



,, ,, 7 and 9 present . 



4. Forewings with 10 out of 8 



, ,,10 separate 



5. Forewings with all veins present . 



,, ,, one or more veins absent 



6. Forewings with 10 sepai'ate 



,, ,, 10 out of 8 or absent 



7. Forewings with 3 and 7 absent 



,, ,, 3 and 7 present . 



8. Forewings witli 11 out of 8 



,, „ 11 separate 



1. Trichoptilus. 



4. 

 . 2. Oxyptilus. 

 3. Platyptilia. 

 8. Stenoptilia. 

 . 6. 

 7. Alucita. 

 7. 

 4. Pteuopiiorus. 

 8. 



5. pselnophorus. 



6. Marasmarcha. 



1. 



Wlsi 



Trichoptilus, 



Face not tufted. Labial ])alpi ascending, second joint with 

 short projecting scales beneath, tending to form a short angular 

 a]jical tuft, terminal filiform. Tibiae thickened with scales on 

 origin of spurs. Forewings cleft from before middle, Bcgments 



