Plate G, 



1. Vein Gall on White Ash. Eriophyes sp. 



2. Chokecherry Mite Gall. Eriophyes. sp. 



3 . Hawthorn Serpentine Gall . Eriophyes sp . 



4. Manitoba Maple Wart Gall. Eriophyes sp. 



5. Poison Ivy Mite Gall . Eriophyes sp. 



6. Birch Bud-Gall . Eriophyes sp. 



