HOWE: NEW ENGLAND ODONATA 133 
fore not only the most stable and satisfactory, but decidedly the 
most worth while to investigate.^ 
The author will welcome any New England odonate records, and 
he wishes particularly to ask for ecological data especially where 
species are being observed to oviposit. 
In closing this paper I wish to express my sincere thanks to Miss 
Bertha P. Currie of the Bureau of Entomology, Washington, for 
the compilation of many records, and to Drs. W. M. Wheeler, 
E. M. Walker, P. P. Calvert, R. A. Muttkowski, P. Garman, Messrs. 
C.T. Brues, N. Banks, C. W. Johnson, and E. B. WiUiamson, for 
material aid, and many others for much help in the preparation of 
this paper. For generous aid in defraying the cost of the publica- 
tion grateful acknowledgment is due to Miss Mabel Lyman. 
^ See in this connection a paper just issued by Lutz (Amer. Mas. Novitates, 
1921. no. 5, 7 pp.). 
