234 MAINE AGRICULTURAL EXPERIMENT STATION. I9IO. 



1879. Schisoneura ulmi Linn., Thomas (III) Rept. of the State Ent. 



111. VIII, p. 140. 

 (1885. Schisoneura americana, Lintner. New Eng. Homestead, 4 July,) 



1885, V. ig, p. 269. 

 1890. Schisoneura americana, Packard. Fifth Rept. U. S. Entom. Com. 

 p. 279. Extract from Riley Bill. U. S. Geol. and Geograph. 

 Survey, Vol. V, No. i. 

 1889. (i8go.) Schisoneura americana, Perkins. Third Ann. Report 

 Vt. Agric. Exp. Sta. pp. 160-162. Adapted from Riley. 

 Bui. U. S. Geol. & Geograph. Survey, Vol. V., No. i. 

 Fig. 18 (after Riley). 

 (1890. Schisoneura americana, Perkins. Eleventh Rept. Vt. St. Board 



of Agriculture.) 

 1895. Schisoneura americana, Piper. Bui. No. 17 Wash. Agr. Exp. 

 Sta. p. 48. Brief account. 



1897. Schisoneura americana, Gillette Bui. Div. Ent. U. S. Dept. Agric. 



9 (n. s.) : 78-79. Description of work. 



1898. Schisoneura americana, Gillette Bui. A. E. S. Colo. 47: 3.^5-36. 



Account of work. Economic treatment. Fig. 32 photo of 

 work. 



1899. (igoo.) Schisoneura americana, Harvey. Bui. Me. Agr. Exp. 



Sta. No. 61. Indem. Ann. Rept. of Me. Agr. Exp. 

 Sta. for 1900, p. 32. Mentioned as abundant. Photo- 

 graph of leaf curl. 



1900. Schisoneura americana. Lugger. Bui. No. 69. Minn. Agr. Exp. 



Sta. Id. 6th Ann. Rept. St. Ent. of the St. Exp. Sta. Univ. of 

 Minn. pp. 168, 169. Fig. 148 after Riley, 

 igoi. Schisoneura americana, Aldrich. Idaho Agric. Exp. Sta. Feby. 

 Bui. 26, pp. 20-22. Records summ.er and fall (return) migra- 

 tion and describes true sexes. Suggests that alternate host 

 plant may be grass. 



1901. Schisoneura americana, Cockerell. Bui. 38. Arizona Agr. Exp.- 



Sta. p. 265. Mere mention. 

 1902. Schisoneura americana. Weed. Bui. No. 90. N. H. Agr. Exp. 

 Sta. p. :^y. Brief account and photo of curled leaf. 



1902. Schiso7iciira americana, Cook. Galls and Insects Producing 



Them. Ohio Naturalist. Vol. 11, No. 7, p. 265 and Fig. 12. 

 Discussion of structure of gall. 



1903. (1904.) Schisoneura americana, Washburn. Bui. No. 77. Minn. 



Agr. Exp. Sta. Injurious Insects in 1902. Idem, nth 

 Ann. Rept. State Ent. of Minn.) p. 45. Mere men- 

 tion. 



1904. Schisoneura americana, Sanborn. Kansas Aphid, pp. 25-26, Plate 



VI, %. 37- Description of winged form and record of migra- 

 tion. 

 1904. Schisoneura americana. Cook. Galls and Insects Producing 

 Them. The Ohio Naturalist. Vol. IV, No. 6. 



