Tinfc CANADIAN ENTOMOLOGIST. 25 



Trans. Amer. Ent. Soc, T. ii., p. 319. Cephaloneon, perhaps the 

 same as No. 23. The mite is Vasates quadripedes Shimer. 



28. Acer spec. PI. Prof. Barbeck. Not seen by me ; Erineum. Mr. 



John A. Ryder, Amer. Naturahst, 1S79, F. 13, p. 704-705. 'I"he 

 mite is figured. 



29. Acer spec. Ph Bethlehem, N. H., August, 1870. Prof L. Agassiz. 



" Erineum purpurascetis (so called); not supposed to be a fungus, 

 but a disease of the epidermis." Prof Farlow. Large irregular 

 black velvety patches upon the leaves. 



30. Ahius incana Wied. PI. Shelburne, N. H., Aug., 1882. Prof Far- 



low. Erineum alnigerum Kze. (Farlovv) ; small reddish or whit- 

 ish flat woollen patches on the upper side of the leaves. 



31. Alnus serrulata Ait. PI. W. St., O. Sacken. Very small, widely 



scattered Cephaloneon galls on the upper side of the leaves. 



32. Alnus serrulata Ait. Acr. ? W. St., O. Sacken. A hypertrophy of 



the female aments by a fungus. Taphrina alnitorque Tulasne = 

 Ascomyzes Tarquinetii Westendonk (Farlow). Baron O. Sacken 

 believed it to be an Acarideous deformation ; perhaps fungus and 

 Acarus may be combined here. A hemipteron, Cymus Resedce Pz., 

 lives abundantly in the early spring in this deformation. 



33. Amelanchier Canadensis Gray. PI. Woods HoU, August, 1876. H. 



Hagen. Galls similar to a Phrygian cap, the tip rolled down, 

 numerous on the upper side (rarely below) of the leaves ; on the 

 under side the Erineum opening. Mostly many galls on the same 

 leaf 



34. Amelanchier Canadensis Gray. PI. S. Truro, Mass., July 3-7, 1877. 



F. G. Sanborn. Similar to the foregoing, but a number of the galls 

 larger, yellowish, the open tip woolly on the margin. Perhaps the 

 ripe form of the foregoing. 



35. Aristolochia siplio L. Herm. PI. Harvard Arboretum, June 17, 



1882. H. Hagen. Small woollen tuberculous galls on the under- 

 side of leaves ; above small rounded openings, with white woollen 

 margins. I am not entirely sure that it belongs to Acarus. 



36. Artemisia spec. Acr. N. England. Prof Farlow. Deformation 



of the buds ; black globes of densely crowded filaments. 



37. Betula spec. Acr. Massachusetts, 1880, November. Prof Farlow. 



Densely crowded irregular deformations of the buds. 



38. Carya tome?iiosa Nutt. PI. Washington, D. C., June 13, 186 1. O. 



