PSYCHE 
Editor-in-Chiej, W. L. W. Field; 
Associate Editors, C. B. Davenport, J. H. Emerson, V. L. Kellogg, 
C. W. Johnson, A. P. ]\Iorse, J. G. Needham. 
Psyche is published bi-monthly, i. e. in February, April, June, August, October and December. 
Subscription price, per year, payable in advance: SI. 00 to subscribers in the U. S. and its Terri- 
tories and Dependencies or in Canada or Mexico; SI. 25 to those in other countries. 
Back Volumes: 
A limited number of copies of volumes 1-9 can be supplied at $5.00 a volume. The price of Vol- 
ume X is S3. 00. and that of Volume XI is $2.00. Volumes will not be broken. Remittance should accom- 
pany order. 
To Contributors: 
Copy should be typewritten whenever possible. 
Separates, if desired, must be ordered in advance of publication. 
Fifty Separates of leading articles will be furnished gratis: additional copies will be supplied at 
cost. 
Advertising r.ates furnished upon application. 
All material for publication in a given number must be in the hands of the Editors on or before 
the first day of the month preceding the month of publication. 
All correspondence should be addressed to 
CAMBRIDGE ENTOMOLOGICAL CLUB, 
Care Boston Society of N.atural History, 
BERKELEY STREET, BOSTON. MASS. 
EXCHANGES. 
[Exchange notices (not over five lines) inserted free for subscribers. Notices will be inserted in the 
order in which they are received, and those at the top of the column will be removed only when it is neces- 
sary to make room for new ones at the bottom.] 
WANTED — Eggs, larvae or pupae of grasshoppers, dragon-flies, beetles, bugs. etc. Will give 
tropical butterflies in exchange. Denton Bros., Wellesley, Mass. 
WANTED — Material for the study of the hybrid or polymorphic butterflies of the genus Basilarchiu. 
including larvae or pupae of arthemis or astyanax, imagos of proserpina or artkeckippus or any specimens 
showing unusual characters. Liberal exchange. Specimens retained will be deposited in Museum of 
Comparative Zoology. W. L. W. Field, Milton. Mass. 
LEPIDOPTERA — For exchange, fertile eggs of Henuleuca maia. Alfred C. Sampson. Sharon. Mass. 
I have a few specimens of C. calleta and cinctus to exchange for rare Sphingidae or Pupae of same. 
W, T. Buxton. 17 Walter St., Somerville. Mass. 
WANTED — Ova. larvae or pupae of Limenitis vrsula and arthemis. Will give cash or exchange. 
H. H. Newcomb, 35 Court St., Boston, Mass. 
Will collect Diptera, Hymenoptera. Hemiptera and Coleoptera. Would like in exchange, quantities 
of named or unnamed Buprestidae. Scarabaeidae. Cerambycidae and Chrysomelidae. Please write imme- 
diately to G. Chagnon. P. O. Box 186. Montreal, Canada. 
Correspondence desired regarding Rhopalocera of North and South .\merica, especially Argynnis, 
Papilio, Morpho. Caligo. Exchange or otherwise. T. H. Shepherd, 15 Hope View, Carr Laiie, Sliipley, 
Yorks., England. 
E.\STERN MASS. MOTHS WANTED in exchange for same. Also, reliable colored sketches of 
larvae of same. C. V. Blackburn, 101 Pine St., Woburn, Mass. 
Am willing to make contracts to collect for the season, with private collectors, museums, colleges or 
any public institution for insects of any order or group desired, either in large or small series. Duplicates 
of all ortlers for sale from Colorado, New Mexico, and Arizona. Correspondence solicited, Ernest J. 
Oslar, 4535 Raleigh St. Alcott P. 0., Denver. Colorado. 
W.\NTED — Records of captures of Connecticut insects — especially the rarer .species — for the prep- 
aration of a Slate list. Orthoptera and Hymenoptera records desired at once. W. E. Britton, Slate 
Entomologist, New Haven, Conn. 
CICINI)ELID.\E of the world wanted. Good exchange in all families of Coleoptera offered. H. 
F. Wickham, Iowa City, Iowa, U. S. A. 
HIPPOD.\MI.\ — Live individuals and large masses for variation study desired. Insects collected 
to order in exchange. The following species especially wanted — H. moesta. 12-maculata and slnuata. 
11. H. Johnson, Station for Experimental Evolution, Cold Spring Harbor, N. Y, 
