Mo. BOT. GARD. BULL., VOL. 4, 1916. PLATE 22. 
r 
1. THREE ABNORMAL GROWTHS CONTAINING PUPAE, THE MIDDLE ONE 
CUT TO SHOW CAVITY AND PUPAE. 2. PUPAE JUST BEFORE EMERGING 
INTO THE WINGED INSECTS. 3. NORMAL GROWTH NOT ATTACKED BY THE 
INSECTS. 
(Twice Natural Size) 
