Cynipid Galls 



1 Gall on oak, of Andricus rileyi Ashm. (After Thompson) 



2 White oak club gall, Andricus clavula O. S. (After Thompson) 



3 Oak wart gall, Andricus futilis Bass. (After Thompson) 



4 Gall on oak, of Andricus operator O. S. Spring form. (After 

 Thompson) 



5 Gall on oak, of Andricus operator O. S. Fall form. (After 



Thompson) 



6 Oak nipple gall, Andricus papillatus O. S. (After Thompson) 



7 Oak flower gall, Callirhytis pulchra Bass. (After Thompson) 



8 Gall on oak, of Andricus scitula Bass. (After Thompson) 



9 Scrub oak club gall, Callirhytis similis Bass. (After Thompson) 



246 



