PSYCHE 
Editor-in-chieJ\ W. L. \V. Field; 
Associate Editors, C. B. Davenport, J. H. Kmertun, R. Hayward, 
V. L. Kellogg, C. W. Johnson, A. P. Morse, J. G. Needham; 
Basioess Manager, H. H. Newcomb. 
Psyche is published biunonthly, i.c. in February, April, June, August, October and 
December. 
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A limited number of copies of volumes 1-9 can be supplied at $5.00 a volume. 'Phe 
price of Volume X is S3. 00, and that of Volume XI is $2.00. Volumes will not be broken. 
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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 (jraiis; additional copies will be 
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Advertising rates furnished upon application. 
All material for publication in a given number must be hi the hands of the F.ditois on or 
before the first day ofthe month preceding the month of publication. 
All correspondence should be addressed to 
CAMBRIDGE ENTOMOLOGICAL CLUB, 
Care IJoston Society of Naiural ID.stokv, 
HERKFLEV STREET. POSTON, MASS. 
EXCUANtiES. 
[E>:chan^e notices "not over five lines) inserted free for subscribers. Notices will be inserted in the order in 
which tney are re :eived. md those at the top of the column will be removed only when it is necessary to make room for 
new ones at the bottom ] 
AMARA. Being engaged in the study of this genus, ! will determine specimens for collectors. These should 
be sent numbered 1 am also an.xious to obtain species in other genera of Carabidae not in my collection, from all 
parts of the world, and will purchase or exchange for same. Roland Hayward. Readville. Mass. 
WANTED — Eggs, larvae or pupae of grasshoppers, dragon-flies, beetles, bugs. etc. Will give tropical 
butterflies in exchange- Denton Bros.. Wellesley, Mass. 
WANTED— Material f»jr the study of the hybrid or polymorpfiic butterflies of the genus Baiilarchia, including 
arvae or pupae of aTthemis or rfs/mwax. images of ^rt)S(.’rpf«a or ar//vc/;f/’/’»5 or any s;>ecimens showing unusual 
'characters. Liberal exchange. Specimens retained will be deposited in Museum of Comparative Zoology. W. L. 
W. Field. Milton, Mass. 
LEPIDOPTERA— For exch inge. fertile eggs of HemiUuca maia. Alfred C. Sampson. Sharon. Mass. 
1 have a few specimens of C. callcta and ctHc/ws to exchange for rare or Pupae of same. W.T. 
Buxton, 17 Walter St., Somerville, Mass. 
WANTED— Ova, larvae or pupae of LiiuoOtis ur&ula and arthewis. 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 unnimel Buprestidae. Scarabaeidae, Cerainbycidae and Chrysomelidae. Please write immediately to G. Chagnon, 
P. O. Box 186, Montreal _ Canada. 
Correspondence desired regarding Rhopalocera of North and South America, especially Argynnis. Papilio, 
Morplio. Caligo. Exchange or otherwise. T. H. Shepherd 15 Hope View, Carr Lane. Shipley, Yorks., England. 
EASTERN MASS- MOTHS WANTED in exchange for same. Also, reliable colored sketches of larva? 
same. C.V. Blackburn. loi Pine St.. Woburn, Mass, 
Am willing to make contracts to collect for the season, with private collectors, museums, colleges, or an>’ 
public institution for insects of any order or group desired, either in large or small series. Duplicates of all orders 
for sale from Cohirado, New M xico. and Arizona. Correspondence solicited. Ernest J. Oslar. Raleigh St. 
Alcotf P. 0., Denver, Coloradi). 
WANTED — Records of captures of Connecticut insects — especially the rarer species — for the preparation of a 
State list. Orthoptera and Hymenoptera records desired at once. W. E. Britton. State Entomologist, New Haven. 
Conn. 
CICINDELIDAE of the world wanted. Good exchange in all families of Coleoptera offered. H.F. Wick- 
ham. Iowa City. Iowa. U. S. A. 
HIPPODAMIA — L've individuals and large masses for variation study desired. Insects collected to order 
exchange- The followin: species especially wanted— H. inoesta. 12-maculata and sinuata. R.H. Johnson, Sta* 
tion for Experimental Evolution. Cold Spring Ha* bor. N. Y. 
