74 P L A T;E CC^XXXI. 



beginning of Oftober, it fpins a very extraordinary kind of covering 

 on a leaf of the oak, and becomes a pupa within. This covering 

 fomev^rhat refembles a tent, or rather an inverted boat, being fhuttle 

 formed, and having a keel, or longitudinal ridge along the upper 

 part: its colour is yellowifli brown ; the pupa underneath is purple. 

 The Moth appears in the winged ftate in May 



PL AT E 



