PLATE X.\X 



LEAVES OF THE MKALY GU El.DEK \iC\'~,\\ ( I' ihurmi7n Lantana) \\\T\\ I'USTUI-AR 

 GAl-LS CAUSE! I V,\ THE I'KESENCE OF THE LARVAE OK THE (iALL-GNAT 



OligotropJius Solmsii. the lowest leaves shew the crjNDiTitiKs )'KESEnt 

 ON THB UNDER SURFACE 



