Published monthly l-y the 



New York State Education Department 



BULLETIN 343 



JUNE IQ05 



New York State Museum 



JOHN M. CLARKE Director 

 EPHRAIM PORTER FELT State Entomologist 



OF TKF 



UNIVERSITY ) 

 ENTOMOLOGY 23 V OF 



Bulletin 86 



MAY FLIES AND MIDGES OF NEW YORK 



THIRD REPORT ON AQUATIC INSECTS 



A study conducted at the entomologic field station, Ithaca N. Y. under the direction of 

 EPHRAIM PORTER FELT D.Sc. 



BY 



JAMES G. NEEDHAM Ph.D. Professor of biology, Lake Forest College 



KENNETH J. MORTON F.E.S.L. Edinburgh, Scotland 



O. A. JOHANNSEN M.S. Instructor in civil engineering, Cornell University 



Preface 4 



Introduction .-; 7 



Slimmer Food of the Bullfrog at 



Saranac Inn. J. G. NEEDHAM 9 



Ephemeridae. J. G. NEEDHAM. . 17 

 North American Hydroptilidae. 



K. J. MORTON 63 



Aquatic Nematocercrus Diptera 



II. O. A. JOHANNSEN 76 



Explanation to the plates. 316 



Legenda to text figures 331 



Plates 1-37 face 332 



Index 333 



Meirjm-S 1-200: 



ALBANY 



NEW YORK STATE EDUCATION DEPARTMENT 

 1905 



Price 80 cents 



