ARCHIVES IN~~CT BIOCHEMISTRY AND PHYSIOLOGY Richard T. Mayer, Executive Editor Jeffrey P. Shapiro, Associate Editor Ann Harris, Assistant Editor USDA, ARS US Horticultural Research Lab 2120 Camden Road Orlando, FL 32803 EDITORIAL BOARD R. Feyereisen H. Laufer Department of Entomology Department of Genetics and Oregon State University Cell Biology The University of Corvallis, Oregon Connecticut S. Friedman Storrs, Connecticut Entomology Department University of Illinois G. J. Blomquist J. J. Menn Department of Biochemistry Urbana, Illinois U.S. Dept of Agriculture University of Nevada at Reno L.I. Gilbett National Program Staff Reno, Nevada Department of Biology Beltsville, Maryland University of North Carolina D. Borovsky at Chapel Hill Florida Medical Entomology Chapel Hill, North Carolina T. Nagai Laboratory Agriculture Canada Research University of Florida, IFAS H.H. Hagedorn Institute Vero Beach, Florida Department of Entomology London, Ontario, Canada Cornell University W.S. Bowers Ithaca, New York H. Oberlander Department of Entomology J.G. Hildebrand USDA, ARS College of Agriculture Insect Attractants, Behavior University of Arizona The University of Arizona Arizona Research Laboratoriesi and Basic Biology Research Tucson, Arizona Laboratory Division of Neurobiology L. Brattsten Gainesville, Florida Tucson, Arizona Agricultural Products H.R. Kim Department I. Orchard Department of Biology E.I. DuPont deNemours & Department of Zoology Korea University co. University of Toronto Seoul, Korea Wilmington, Delaware Ramsay Wright Zoological J. Koolman Laboratories J.R. DeLoach Physiologisch-Chemisches Toronto, Ontario, Canada USDA, ARS, SPA Institut der Universitat Veterinary Toxicology Marburg College Station, Texas Marburg, Federal Republic of T. Piek Universiteit van Amsterdam Germany R.G.H. Downer Farmacologisch Department of Biology A.K. Kumaran Laboratorium University of Waterloo Department of Biology Amsterdam, The Waterloo, Ontario, Canada Marquette University Netherlands Milwaukee, Wisconsin J.L. Eaton J.H. Postlethwait R. Lafont Department of Entomology Department of Biology Virginia Polytechnic Institute Ecole Normale SupCrieure University of Oregon du Laboratoire de Zoologie and State University Eugene, Oregon Blacksburg, Virginia Paris, France R.A. Bell USDA, ARS Insect Reproduction Lab Beltsville Agricultural Research Center Beltsville, Maryland Authorization to photocopy items for internal or personal use, or the internal or personal use of specific clients is granted by Alan R.Liss, Inc. for librariesand other users registered with the Copyright Clearance Center (CCC) Transactional Reporting Service, provided that the base fee of $00.50 per copy, plus $00.25 per page is paid directly to CCC, 27 Congress Street, Salem, MA 01970.07394462/87$00.50 + 00.25. Archives of Insect Biochemistry and Physiology (ISSN 0739-4462)is published monthly by Alan R. Liss, Inc., 41 East 11th Street, New York, NY 10003. Subscription price:Volumes4-6,1987,twelve issues: $320 in US; $359 outside US. Volumes 7-9,1988, 12 issues:$320in US; $359outside US. Special Personal Rate: $85 in US; $124 outside US. Subscriptionsat the personal rate MUST be paid by personal check, credit card, bank draft or money order. All subscriptions outside North America will be sent by air. Payment must be made in U S dollars. Payments not drawn on a US bank will be subject to bank collection charges. Change of Address: Please send to publisher six weeks prior to move; enclose present mailing label with change of address. Claimsfor Missing Issues: Claimscannotbe honored beyond four months after mailing date. Duplicate copies cannot be sent to replace issues not delivered because of failure H.H. Rees Department of Biochemistry University of Liverpool Liverpool, United Kingdom L.M. 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