510 
Indiana University Studies 
GALL FORMATION, CYNIPS FOLII 
Redrawn after Beyerinck 
Fig. 107. Agamic adult folii oviposits in buds where bisex. form will 
subsequently develop. 
Figs. 108-111. Successive stages in formation of bud galls of bisex. 
form taschenbergi. 
Fig. 112. Histologic details, bud galls of bisex. form taschenbergi . 
Fig. 113. Bisexual female taschenbergi oviposits in leaf vein where 
agamic form folii will subsequently develop. 
Figs. 114-117. Successive stages in formation of leaf galls of agamic 
form folii. 
