PSYCHE 
Editor-in-Chie] and Publication Manager, L. \Y. Field; 
Associate Editors, C. B. Davenport, J. II. Emerton, V. L. Kellogg, 
C. W. Johnson, A. -P. Morse, 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: $1.25 to those in other countries. 
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 onitis; additional copies will be supplied at 
cost. 
Advertising rates 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 Natural History, 
BERKELEY STREET, BOSTON. MASS. 
Application pending for entry as Second-class matter in the Boston Post Office. 
ErCCHANOES. 
[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 Basilarchia 
including larvae or pupae of arthcmis or asiyanax, imagos of 'proserpina or arthechippus or any specimens 
showing unusual characters. Liberal exchange. Specimens retained will be deposited in Museum of 
Comparative Zoology. W. L. W. Field, Milton. Mass. 
LEPIDOPTER.\ — For exchange, fertile eggs of Hemilcuca maia. Alfred C. Sampson. Sharon. Mass. 
I have a few specimens of C. calleta and cinctu^ to exchange for rare Sphingidae or Pupae of same. 
W'. T. Buxton. 17 Walter St.. Somerville. Mass. 
WANTED — Ova, larvae or pupae of Limenitis vrsxda and arthcmis. 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, Cerarnbycidae and Chrysomelidae. Please write imme- 
diately to G. Chagnon, P. O. Box 186. Montreal, Canada. 
Correspondence desired regarding Rhopalocera of North and South America, especially Argynnis, 
Papilio, Morpho, Caligo. Exchange or otherwise. T. H. Shepherd, 15 Hope View, Carr Lane, Shipley, 
Yorks., England. 
EASTERN MASS. MOTHS W.A.NTED in exchange for same. Al.so, 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 orders for sale from Colorado, New Mexico, and Arizona. Correspondence solicited. Ernest J. 
Oslar, 4535 Raleigh St. Alcott P. O., Denver. Colorado. 
WANTED — Records of captures of Connecticut insects — especially the rarer species — for the prep- 
aration of a State list. Orthoptera and Hymenoptera records desired at once. W. E. Britton, State 
Entomologist, New Haven, Conn. 
CICINDELID.VE 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 sinuata. 
11. H. Johnson. Station for^Experimenlal Evolution, Cold Spring Harbor. N. Y. 
