University of the State of New York 
New York State Museum 
FREDERICK J. H. MerRILL Director 
EPHRAIM PORTER FELT State Entomologist 
Bulletin 68 
ENTOMOLOGY 18 
AQUATIC INSECTS IN NEW YORK STATE 
PREFACE 
It is very gratifying to present the public with such a material 
addition to our knowledge of the aquatic insects of the State, an 
ecological group which has received almost no attention except 
from those engaged in a systematic study of the adults. There 
is no doubt that insects form an important part of the suste- 
nance of some of our most valued food fishes, as shown by Dr 
Needham’s studies of the food contents of trout stomachs. Mr 
Johannsen’s systematic and biologic study of these minute spe- 
cies will do much toward making possible their identification 
in the immature as well as the adult condition. The ability to 
identify young or immature forms is exceedingly important 
‘when studying aquatic insects, and the great attention given 
ito the early stages is the most valuable feature of this collec- 
tion of papers. The publication of this bulletin marks another 
important step in an investigation on the value of insects as 
fish food. The consummation of this, as has been previously 
pointed out, is a work of years; and it is hoped that each season 
may be marked by substantial progress. 
The acquisition of new facts is a laborious process; and the 
several authors are to be congratulated on their success. 
This collection of papers will prove not only a source of in- 
formation but also an inspiration to all subsequent workers. 
K. P. Feur 
State Entomologist 
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