74 PLATE CCX. 



are hatched, the young begin to fpin a ftrong white web, which they 

 enlarge as their fociety increafes; they remain together till they have 

 devoured all the leaves of the plant on which they are hatched, or 

 till they are arrived at full fize to change into the chryfalis ftate. 



Thefe Caterpillars are not very uncommon in fome parts of the 

 country, efpecially in Kent. They are ready to change to chryfalis 

 ftate late in June. The Moth is not produced till April following. 



The trivial Englifh name, Egger Moth, is given to this, and two 

 or three other Moths, from the fimilitude of the cafe in which the 

 chryfalis is inclofed to the ihape of egg. 



PLATE 



