REPORT OF THE STATE ENTOMOLOGIST I905 57 



have been discovered and characterized in the progress of this 

 work, and the Museum pubhcations treating of aquatic insects are 

 essential to the hbrary of every student interested in this important 

 group. 



Original studies of mosquitos, a group of unquestioned economic 

 importance, have been prosecuted for several years, the preliminary 

 results appearing in Museum bulletin 79, the first American publi- 

 cation to present a large number of reproductions from photo- 

 micrographs of both adult and larval structures. These illustra- 

 tions are of utmost service, being very nearly essential to the iden- 

 tification of many species. Furthermore, this bulletin presents for 

 the first time an excellent series illustrating the male genitalia, 

 structures possessing a systematic value previously ignored and 

 more fully expounded in an important morphologic paper con- 

 tained in Museum bulletin 97. 



Acknowledgments. The office is indebted to Dr L. O. Howard, 

 Chief of the Bureau of Entomology, United States Department of 

 Agriculture and to members of his staff for kindly determining 

 various insects submitted for name throughout the year. Through 

 the courtesy of Forest, Fish and Game Com'r James S. Whipple, 

 the facilities of Fulton Chain hatchery at Old Forge, N. Y. were 

 placed at the disposal of the office during the time field investiga- 

 tions of aquatic insects were in progress. 



Respectfully submitted 



Ephraim Porter Felt 



State Entomologist 

 Office of the State Entomologist Albany, October 14, 1905 



