PLATE VII 



TliL- 1 iui.oi led Alder Lcal-niinr: Kics. 1 and J, l.lotch-miiu-s of tlu> larvae; .', an adult th ; 1. an 

 affecled leaf showing the larvae in Iheir mines; 5, puyal caser; 6, larvae removed from the mines. 



