CAMBRIDGE ENTOMOLOGICAL CLUB 
OFFICERS FOR 1926 
President 
. Mr. W. L. W. Field 
Vice-President 
Mr. O. E. Plath 
Secretary 
Prof. J. Bequaert 
Treasurer 
1 
Mr. F. H. Walker 
Mr. C. A. Frost 
Excutive Committee > 
. Mr. F. M. Carpenter 
Mr. P. J. Darlington, Jr. 
Editor of Psyche .... Prof. C. T. Brues 
EDITORIAL BOARD OF PSYCHE 
EDITOR-IN-CHIEF 
C. T. Brues, Harvard University 
ASSOCIATE EDITORS 
C. W. Johnson, Nathan Banks, 
Boston Society of Natural History. Harvard University. 
A. L. M ELAND ER, A. P. MORSE, 
College of the Peabody Museum, 
City of New York, Salem, Mass. 
J. H. Emerton, j. G. Needham, 
Boston, Mass. Cornell University. 
W. M. Wheeler, 
Harvard University. 
PSYCHE is published bi-monthly, the issues appearing in February, April, June, August, 
October and December. Subscription price, per year, payable in advance: $2.00 to sub- 
scribers in the United States, foreign postage, 25 cents extra, Canada 15 cents, Single 
copies, 40 cents. 
Cheques and remittances should be addressed to Treasurer, Cambridge Entomological 
Club, Bussey Institution, Forest Hills, Boston 30, Mass. 
Orders for back volumes, missing numbers, notices of change of address, etc., should be 
sent to Cambridge Entomological Club, Bussey Institution, Forest Hills, Boston, 30, Mass. 
IMPORTANT NOTICE TO CONTRIBUTORS. 
Manuscripts intended for publication, books intended for review, and other editorial 
matter, should be addressed to Professor C. T. Brues, Bussey Institution, Forest Hills, 
Boston, 30 Mass. 
Authors contributing articles over 8 printed pages n length will be required to bear a 
part of the extra expense, for additional pages. This expense will be that of typesetting 
only, which is about $2.00 per page. The actual cost of preparing cuts for all illustrations 
must be borne by contributors; the expense for full page plates from line drawings is 
approximately $5.00 each, and for full page half-tones, $7.50 each; smaller sizes in pro- 
portion. 
AUTHOR’S SEPARATES. 
Reprints of articles may be secured by authors, if they are ordered before, or at the 
time proofs are received for corrections. The cost of these will be furnished by th« 
Editor on application. 
Entered as second-class mail matter at the Post Office at Boston, Mass. Acceptance 
for mailing at special rate of postage provided in Section 1103, Act of October 3, 1917, 
authorized on June 29, 1918. 
