University of the State of New York 



New York State Museum 



Frederick J. H. Merrill Director 

 Bulletin 47 September 1901 



AQUATIC INSECTS IN THE ADIRONDACKS 



A study conducted at the Entomologic field station, Saranac Inn N. Y. under the direction of 

 Ephraim Porter Felt D. Sc. State entomologist 



JAMES G. NEEDHAM Ph.D. 



P^'ofessor of biology y Lake Forest university^ 



AND ' " . - 



CORNELIUS BETTEN M.A. Amfimhtx-^^l ITTH, 



Preface 



Part I Introductory: the undertak- 

 ing, location, objects, methods 



and results 



Part 2 Life of Little Clear creek 



Part 3 Insect life histories 



Plecoptera .-.. 



Ephemerida 



Odonata 



Neuroptera 



Trichoptera, by Cornelius Bet- 

 ten' 



PAGE 



384 



412 

 418 

 429 





56] 



Part 3 Insect life histories ((f^w/W) page 



Diptera 573 



Notes on other orders 582 



List and two new species of saw- 

 flies, by A. D. Macgillivray 584 

 Original descriptions of new Dip- 

 tera, by D. W. COQUILLETT 585 



Descriptions of five new parasitic 

 Hymenoptera, by W. H. Ash- 

 mead 586 



Explanation of plates 59° 



List of text illustrations 597 



Index 599 



ALBANY 



UNIVERSITY OF THE STATE OF NEW YORl^ 

 I9OI 



M77in-Do-3ooo 



Price 45 cents 



