Insect Galls 



1 Oak leaf seed gall, Cynips decidua Bass. (After Thompson) 



2 Gall on oak, Andricus formosa Bass. (After Weld) 



3 Oak rosette gall, Cynips frondosa Bass. (After Thompson) 



4 Gall on oak, of Cynips glandulosus Riley. (After Thompson) 



5 Lobed oak gall, Cynips strobilana O. S. 



6 Gall on oak, of Aulacidea podagrae Bass. (After Thompson) 



7 Willow egg gall, Euura ovum Walsh. (After Thompson) 



8 Gall on oak, of Pontania desmodioides Walsh. (After Thompson) 



9 Willow apple gall, Pontania pomum Walsh. (After Thompson) 



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