REPORT OF THE STATE ENTOMOLOGIST 1901 727 



1880 Hagen, H. A. Hessian fly not imported from Europe. Can. ent.. 

 12: 197-207 (discussion of subject). 



1880 Hagen, H. A. Probable parthenogenesis of Cecidomyia de- 

 structor. N. Am. ent. 1:65-66 (notes on development of unfertilized eggs). 



1880 Lintner, J. A. Hessian fly. Country gentleman, July 8, 45:439i- 

 (brief general account). 



1880 Packard, A. S. Hessian fly. Am. ent. 3:118-21 (preliminary 

 notes). 



1880 Packard, A. S. Hessian fly. U. S. ent. com. Bui. 4, p. 1-43 (de- 

 tailed account); Hessian fly. Am. nat. 14:586 (notes on work done in 

 controlling pest). 



1880 Riley, C. V. Probable parthenogenesis in the Hessian fly. Am. 

 ent. 3:127 (parthenogenesis and relative abundance of Hessian fly). 



1881 Riley, C. V. Hessian fly. Am. nat. 15:750 (Hessian fly 

 abundant in central and southern Illinois and in Missouri); Effect of 

 drought on Hessian fly, p. 916 (records drying up of puparia). 



1881 Riley, C. V. Hessian fly. Am. nat. 15: 750 (record of injury in 

 Illinois and Missouri). 



1882 Lintner, J. A. Hessian fly in Ohio. Country gentleman, July 20,. 

 47:567 (brief note identifying Hessian fly). 



1883 Hagen, H. A. Hessian fly not imported from Europe. U. S. 

 ent. com. 3d rep't. App. p. 43-49 (resume of evidence). 



1883 Koppen, F. T. Account of the Hessian fly. U. S. ent. com. 3d 

 rep't. 1883. App. p. 41-42. 



1883 Packard, A. S. Hessian fly — its ravages, habits and the means 

 of preventing its increase. U. S. ent. com. 3d rep't. 1883. p. 198-248 

 (detailed account). 



1885 Forbes, S. A. 111. state ent. 14th rep't, p. 38-50 (notes on life 

 history and parasites). 



1885 Hagen, H. A. Further material concerning the Hessian fly. 

 Can. ent. 17: 81-93 (records concerning early occurrence of pest in 

 America); On the Hessian fly in Italy, p. 129-31 (notes). 



1885 Webster, F. M. Purdue univ. Sch. of agric. Bui. 1, p. 1-10 (brief 

 general notice). 



1886 Riley, C. V. On the parasites of the Hessian fly. U. S. nat. 

 mus. Proe. 1885. 8: 413-22 (critical, descriptive and biologic accounts). 



1887 Forbes, S. A. 111. state ent. Bui. 3, p. 45-61 (observations on life 

 history). 



1888 Forbes, S. A. New parasite of the Hessian fly. Psyche, 5:39-40 

 (describes Platygaster hiemalis). 



1888 McMillan, Conway. Neb. agric. exp. sta. Bui. v. 1, no. 2, p. 17-23 

 (brief general notice). 



1888 Riley, C. V. Hessian fly an imported insect. Can. ent. 20: 121- 

 27 (discussion of evidence relating to the introduction of this pest); Insects 

 confounded with the Hessian fly prior to the revolution. Insect life, 1:86 

 (states that species Chlorops or Meromyza has been con- 



