28 THE CANADIAN ENTOMOLOGIST. 



64. Quercus bicolor Wilden. PL Conn., by Mr. Bassett. O. Sacken. 



Upper side of leaf crowded with very small Cephaloneon ; labeled 

 as Podosoma. 



65. Quercus obtusiloba Mich. PI. Washington, D. C, October. O. 



Sacken. Deformation of leaves on the margin. 



66. Quercus spec. PI. Saltillo Mts., Mexico, Aug., 1879. Dr. Palmer. 



Deformation of leaf on margins. 



67. Quercus spec. PI. Colorado, 1873. W. L. Carpenter. O. Sacken. 



The gall belongs not to the three species described by the Baron 

 in Hayden's Report for 1873, p. 567. The galls were labeled 

 " Russ (sic.) galls," and are somewhat doubtful ; oval, somewhat 

 woolly, on the upper side of the leaves. 



68. R/ius toxicodendron L. PI. Maiden, Mass., Sept. 1879. H. Hagen. 



Erineum, on the leaves. 



69. Salix nigra Mars. Acr. Rock Lsl., Illinois, Walsh. O. Sacken. 



The types of Gal/. Sa/icis Aenigina. Walsh, Proc. Ent. Soc. Phil. 

 T. iii., p. 60S, and T. vi., p. 227. Deformation of the buds. 



70. Salix nigra Mars. PI. Rock lsl., Illinois, Walsh. O. Sacken. The 



types of Gall. Sal ids semen Walsh, Proc. Ent. Soc. Phil., T. iii., p. 

 606, and T. vi., p. 227. Probably a Cephaloneon. 



71. Salix nigra Mars. PI. Wash. Terr., opposite Umatilla, June 27, 



1882. S. Henshaw. Small and very crowded Cephaloneon galls 

 upon the leaves. 



72. Sj>iraeaspec.? PI. Cambridge, Mass., spring, 1877. H. Hagen. 



Probably Cephaloneon on the leaves. 



73. Tilia Americana L. PI. U. S. O. Sacken. Very shortly peduncu- 



lated galls on the upper side of the leaves. 



74. Thuja occidentalis L. PI. Mass., July, 1879. P^of Farlow. Cov- 



ered with eggs and skins ; deformation of the leaves. 



75. Vaccinium spec. PI. Colville Valley, Wash. Terr., July 23, 1882. 



S. Henshaw. Small round galls on the leaves. 



There are besides in the collection a number of specimens not yet 

 sufficiently studied, as some cases of Phyllomania or Polyphyllia on pines 

 and other plants, perhaps consequences of Phytoptus. 



To the 5 1 American Phytoptus galls in the Collection of the Museum, 

 must be added the four described, but not seen by me ; by Mr. Shimer, 

 on Acer dasycarpum ; by Mr. Ryder, on Acer ; by Mr. Ashmead, on 

 oranges, and by Mr. Burrill, on pear leaves. Further, two shortly described 



