Advances in Insect Physiology Volume 25 This Page Intentionally Left Blank Advances in Insect Physiology edited by P. D. EVANS Department of Zoology, The University Cambridge, England Volume 25 ACADEMIC PRESS Harcourt Brace & Company, Publishers London San Diego New York Sydney Toronto Tokyo Boston ACADEMIC PRESS LIMITED 24-28 Oval Road London NW17DX United States Edition published by ACADEMIC PRESS INC. San Diego, CA 92101 This book is printed on acid-free paper Copyright 01994 by ACADEMIC PRESS LIMITED All Rights Reserved No part of this book may be reproduced in any form by photostat, microfilm, or any other means, without written permission from the publishers A catalogue record for this book is available from the British Library ISBN 0-1 2-0242257 Typeset by Keyset Composition, Colchester, Essex Printed and bound in Great Britain by TJ Press Ltd, Padstow, Cornwall Contents Contributors Advances in Insect Virology L. A. KING, R. D. POSSEE, D. S. HUGHES, A. E. ATKINSON, C. P. PALMER, S. A. MARLOW, J. M. PICKERING, K. A. JOYCE, A. M. LAWRIE, D. P. MILLER, D. J. BEADLE Genetic Mechanisms of Early Neurogenesis in Drosophila melanogaster J. A. CAMPOS-ORTEGA vii 1 75 Molecular Biology of the Honeybee R. F. A. MORITZ 105 Information Processing in the Insect Ocellar System: Comparative Approaches t o the Evolution of Visual Processing and Neural Circuits M. MlZUNAMl 151 Allatostatins: Identification, Primary Structures, Functions and Distribution 6. STAY, S. S. TOBE, W. G. BENDENA 267 Index 339 Color Plates are located between pages 152 and 153. This Page Intentionally Left Blank Contributors A. E. Atkinson School of Biological and Molecular Sciences, Oxford Brookes University, Gipsy Lane Campus, Oxford OX3 OBP, U K D. J. Beadle School of Biological and Molecular Sciences, Oxford Brookes University, Gipsy Lane Campus, Oxford OX3 OBP, UK W. G. Bendena Department of Biology, University of Iowa, Iowa City, ZA 52242-1324, USA J. A. Carnpos-Ortega Institut fur Entwicklungsbiologie, Universitat zu Koln, 0-50931 Koln, Germany D. S. Hughes School of Biological and Molecular Sciences, Oxford Brookes University, Gipsy Lane Campus, Oxford OX3 OBP, UK K. A. Joyce School of Biological and Molecular Sciences, Oxford Brookes University, Gipsy Lane Campus, Oxford OX3 OBP, U K L. A. King School of Biological and Molecular Sciences, Oxford Brookes University, Gipsy Lane Campus, Oxford OX3 OBP, UK A. M. Lawrie School of Biological and Molecular Sciences, Oxford Brookes University, Gipsy Lane Campus, Oxford OX3 OBP, U K S. A. Marlow School of Biological and Molecular Sciences, Oxford Brookes University, Gipsy Lane Campus, Oxford OX3 OBP, U K Current address: Royal Free Medical School, UK D. P. Miller School of Biological and Molecular Sciences, Oxford Brookes University, Gipsy Lane Campus, Oxford OX3 OBP, U K M . Mizunami Laboratory of Neuro-Cybernetics, Research Institute for Electronic Science, Hokkaido University, Sapporo 060, Japan R. F. A. Moritz Institut fur