Exchange Column.
Psyche 26(5):144, 1919.

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[October
EXCHANGE COLUMN.
Notices not to exceed four lines in length concerning exchanges desired of speci- mens or entomological literature will be inserted free for subscribers, to be run as long as may be deemed advisable by the editors. Cynipidce,-galls or the bred makers,~of the world desired for exchange or pur- chase. Will determine North American material. Address: Alfred C. Kinsey, Bussey Institution, Forest Hills, Mass.
Sarcophagidse from all parts of the world bought or exchanged according to arrangement. North American material determined.-R. R. Parker, State Board of Entomology, Bozeman, Mont.
Wanted: Insects of any order from ant nests, with specimens of the host ants, from any part of the world; also Cremastochilinse of the world. Will give cash or Coleoptera, Hymenoptera and Diptera from the United States.-Wm. M. Mann, U. S. National Museum, Washington, D. C. Wanted: Insects of the family Embiidae (Isoptera). I would give insects of any order except Lepidoptera. I would like to correspond with persons interested in this family.-Raoul M. May, 2202 W. 10th St., Los Angeles, California. Wanted: To exchange, or purchase for cash, specimens of the Genus Apantesis from any locality.
Also to purchase rare Catoca1se.-Samuel E. Cassino, Salem, Mass.
Wanted for cash: Lowest representatives df all families of insects, preserved in fluid.4. C. Crampton, Amherst, Mass.
Wanted: Living larval material of Tabanidae, obtainable by silting the soil at edge of water.-Packing in wet material, not water, each larva separate. Will send collecting outfit.
Exchange insects of any order, or cash.-Werner Marchand, 10 Dickinson St., Princeton, N. J.
For Sale: A large collection of Javanese butterflies. Letters with particulars regarding desired species and families may be addressed to G. overdikink, Agri- cultural School, Soekaboemi, Java, Dutch East Indies. Wanted: Syrphidse (Flower-flies) from all parts of the world. Exchanges solicited.
Will determine on the usual conditions. C. L. Metcalf, Ohio State University, Columbus, Ohio.
Wanted: Pupae of Lachnostema fusca, pupae and larvae of Macrodactglus sub- . -
spinosus, imagoes, pupae and work of Saperda candida and ealearata; Zeuzera pgrina Q , pupae or pupa shell and work. Ward's Natural Science Establishment, Roches- ter. N. Y.
Largest Expans-ne each d' and 9 Lepidoptera wanted for transfer purposes. Those not good enough for collections will do. Will buy, or exchange for local
Lepidoptera, etc. C. V. Blackburn, 12 Pine St., Stoneham, Mass. Butterflies of Japan and Formosa, will be exchanged by S. Satake, 48 Aoyama- minamimachi 6-chome, Tokyo, Japan.




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IN PRESS
Will issue about November 1st.
List of Coleoptera, or Beetles
of North America
Contents:
I. A careful sketch of the recent systems of classifi- cation used in this order.
11. Complete list of species, varieties, and synonyms, with page reference to place of original description, and an indication of geographical distribution. 111. Complete list of all works containing original de- scriptions of North American species, from 1758 to date.
IV. Complete list of the Fossil species of North Amer- ica prepared by Professor H. F. Wickham. ,
All contained in about 475 pages of text, run two columns to page. Size of page 7f by 102 inches, including ample margins for annotations. Subscription Price, including delivery. . . . . . . $5.50
Bound in buckram . . . . . . . . . . . . . . . . . . . . . . , . $6 50
Subscriptions at above prices will be received until August rst, 1919. After that date the price will be $7.50 unbound. All subscriptions are payable in advance. Send all subscriptions to
JOHN D. SHERMAN, JR.,
24 Claremont Avenue,
Mount Vernon, New York.




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