PLUSIADAE 145 



the Lepidopiera. There is much greater diversity of size, 

 colour, and form than in the Caradrinidae, and also more 

 variation in structure, though this remains more uniform 

 than usual. Imago with forewings usually relatively broader 

 and less elongate than in the Caradrinidae, body often more 

 slender. 



Ovum spherical, more or less reticulated, often also riblicd. 

 Larva with few hairs, sometimes with prolegs on 7 and 8 

 absent or rudimentary. Pupa usually in a cocoon above 

 ground. 



The following diagram shows the phylogeny of the principal 

 genera : — 



Phylogeny of Plusiadae. 



Eiviila 



Tabulation of Genera. 



1. Hindwings with 5 pai'allel to 4 . . .2. 



5 more or less appi'oximatcd to 4 10. 



