THE CRANE-FLIES OF NEW YORK PART II 703 



William G. Dietz, Hazleton, Pennsylvania. Notes on larvae of Dicranomyia macateei Alex. 



Oskar A. Johannsen, Ithaca, New York. Limnobia fallax, and other species. 



Carl Ilg, Philadelphia, Pennsylvania. Notes on Rhipidia fidelis. 



O. H. Swezey, Honolulu, Hawaii. Notes on Libnotes and Styringomyia. 



H. K. Munro, Pretoria, Transvaal. Notes on Trentepohlia and Styringomyia. 



Charles Bruch, La Plata, Argentina. Notes on Trimicra, Helobia, and Epiphragma. 



D. B. Young, Albany, New York. Notes on Gnophomyia. 



J. T. Lloyd, Cincinnati, Ohio. Eriocera. 



The late C. Gordon Hewitt, Ottawa, Canada. The Canadian-Arctic Tipulidae, including 



Tipula arctica. 



A. E. Cameron, Ottawa, Canada. Cylindrotoma splendens. 

 R. C. Shannon, Ithaca, New York. Elephantomyia, Brachypremna, Tipula fuliginosa, 



and other species. 



J. Speed Rogers, Grinnell, Iowa. Notes on Phalacrocera tipulina. 

 Harold Morrison, Washington, D. C. Holorusia, and Tipula usitata. 

 C. Hamilton Kennedy, Columbus, Ohio. Prionocera and Rhamphidia. 

 J. Chester Bradley, Ithaca, New York. Longurio. 

 H. S. Barber, Washington, D. C. Oropeza. 

 Adam Boving, Washington, D. C. Tanyptera; notes on Helobia. 



In addition to the preceding, the writer acknowledges specimens or 

 data received from the following: 



From Orono, Maine: Edith M. Patch, H. M. Parshley, Cordelia Stanwood. 



From Cambridge, Massachusetts: Roland Thaxter. 



From Ithaca, New York: H. H. Knight, L. G. Brown, C. C. Hamilton, V. R. Haber, E. 

 A. Richmond, Chih Ping, Waro Nakahara, M. D. Leonard, W. A. Riley, J. D. Tothill, 

 Mrs. J. D. Tothill, W. P. Alexander, W. A. Clemens, W. C. Woods, P. A. Munz, P. W. 

 Claassen, Axel Olsson. 



From Washington, D. C.: C. H. Popenoe, E. R. Kalmbach, Alex. Wetmore, A. T. Speare. 



From Lawrence, Kansas: H. B. Hungerford, P. B. Lawson, H. L. Fackler. 



From Urbana, Illinois: T. H. Frison, W. P. Flint. 



The writer would express his great indebtedness to Dr. Ewald Bergroth, 

 of Jamsa, Finland, for help in determining the derivation of some of the 

 more obscure generic names in the Tipulidae; to Professor T. D. A. 

 Cockerell for notes on the stratigraphy of fossil-bearing beds in many 

 parts of the world; and to Miss Lela G. Gross, assistant editor of the 

 Cornell memoirs, whose critical work on this and the preceding part 

 under this title has been of the greatest value in assuring uniformity 

 and accuracy. 



Further acknowledgments of assistance in determining plant and 

 animal associates of crane-flies are made thruout the text. In conclusion, 

 the writer expresses his indebtedness to his wife, Mabel M. Alexander, 

 for her untiring care and assistance in the typing and final preparation 

 of this thesis. 



