8 NEW YORK STATE MUSEUM 



work of first importance, and will doubtless serve as a basis for 

 future studies in this long-neglected family. 



Mr K. J. Morton of Edinburgh contributes a paper on the 

 micro-caddisflies of the family H y d r o p t i 1 i d a e of T r i - 

 ckoptera, which is practically the beginning of the study of 

 this group in America. 



My own part in this bulletin is a second contribution to the 

 knowledge of our may-flies. Because of the great economic im- 

 portance of this group also, I have thought it worth while to 

 attempt to provide American students with a better introduc- 

 tion to the study of the group than has hitherto been generally 

 available. Hence, in addition to new life histories, I have pre- 

 pared new generic keys to both nymphs and adults, which, with 

 the detailed explanations and figures, should enable even a 

 novice to take up the study of this neglected group with some 

 hope of success. 



I have also prepared a brief report on the summer food of the 

 bullfrog (E ana cat e s b i a n a Shaw) at Saranac Inn, and in 

 the discussion of that food have included a number of ecological 

 and systematic notes, among which is a new key to our genera of 

 H e m e r o b i i d a e . 



I planned also to include herein a report on the stoneflies 

 (P e r 1 i d a e) and did much work to that end : but the station 

 collections are large, and much material has come to me from 

 friends outside, and my manuscript has grown until it now 

 seems better not to include it herein, but to make a separate 

 bulletin of it. I am therefore continuing the work with the 

 purpose of making the next station bulletin a monograph of 

 North American Perlidae. I should be greatly obliged if 

 American collectors who have even a few specimens would send 

 me them for study. 



In this place I may add a note supplementary to bulletin 68. 

 The " unknown tipulid larva from a spring " described on pp.285- 

 286 and figured in pi. 10, figs.4-5, is P e d i c i a albivitta 

 Walker. Had Beling's third paper on Tipulid larvae 

 (Verh. zool.-bot. Ges. Wiel, vol. 36) been available to me when I 

 was studying this larvae, I should have been able to determine 

 it from his keys and description. The " unknown leptid larva 

 from rapid streams" of p.286 and pl.lO, fig.l, is doubtless a 



