"^^H^ 



''"*-"->>*,^^c:\' 



Ex\T. Mo. Mag., 1919. Plate I. 



2 » — ^^•~-~ 



:l__-^- 



--a 



3 



^fl 



Drawings 1, 2 ani 3 bi/ B. E. Green. 



PTERONUS PINT and P. SERTIFER. 



1&2. Pine leaves with egg-deposit of P. 2«m-; 3. Young larvae of 



I', pini ; 4. Egg-cavities of P. sertifer. 



