1910 THE REPORT OF THE ENTOMOLOGICAL SOCIETY 



105 



Eriophyes sp. A white erineum or shallow dimple on underside of leaf, much 

 like the Erineum on Acer negundo. Tilia europea. T. D. J., Guelph. 



Host — Beech. 



Eriophyes sp. A frosty, white erineum in large patches on the under side of 

 the leaf. Trichomes spherically capitate. Fagus americanus. T. D. J., Guelph. 



Host — Birch. 



Eriophyes sp. A bud deformation, crowded and irregular, often in bunches 

 of large size. Birch Bud Gall. (Fig. 38.) Betula lutea. T. D. J., Guelph. 



Eriophyes sp. A rosy-pink erineum in large patches on the upper side of the 

 leaf. Betula lenta. T. D. J., Guelph. 



Fig. 38. Bud-like 

 Galls. 





7 



Fig. 39. Serpentine Gall. 



Eriophyes sp. A yellowish-white to brownish erineum forming large patches 

 between the ribs on the under side of the leaf. Betula papyrifera. T. D. J., Guelph. 



Eriophyes sp. A transparently white, granular erineum on the surface of the 

 leaves. Betula pumila. T. D. J., Guelph. 



Eriophyes sp. A capsule gall, very small, yellow to brown. Paper Birch Cap- 

 sule Gall. (Fig. 32.) Betula papyrifera. T. D. J., Guelph. 



Eriophyes sp. A nodular pocket gall, occurring upon both faces of the leaf; 

 yellowish, or reddish to purplish. Paper Birch Pocket Gall. Betula papyrifera. 

 (Fig. 34.) T. D. J., Guelph. 



Host — Buttonbush. 



Eriophyes cephalanthe (Cook). Clusters of small dimples on the upper side of 

 the leaf, 1 to 3 mm. high. Buttonwood Dimple Gall. Cephalanthus occidentalis. 

 T. D. J., Guelph. 



Host — Chestnut. 



Eriophyes sp. A small, capsule gall on the leaf, more or less spherical and 

 2-8 mm. in diameter. Chestnut Capsule Gall. Castanea sativa, var. araericana. 

 T. D. J., Guelph. 



