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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.