0 International Journal of Odonatology ~ Official Organ of the Worldwide Dragonfly Association Editor Reinhard Jodicke, Germany Assistant Editors Albert Orr, Australia Natalia von Ellenrieder, USA Gordon Pritchard, Canada Editorial Board (201 0-2012) Klaas-Douwe Dijkstra, The Netherlands Goran Sahlen, Sweden Ola Fincke, USA Kenneth Tennessen, USA Matti Hamalainen, Finland Gunther Theischinger, Australia Elena Malikova, Russia Jan van Tol, The Netherlands Andreas Martens, Germany Jessica Ware, USA Michael May, USA Florian Weihrauch, Germany Shannon McCauley, Canada Hansruedi Wildermuth, Switzerland Dennis Paulson, USA Keith Wilson, UAE Aims and scope The International Journal of Odonatology is aimed at providing a publication outlet fort he growing number of students of Odonata.lt will address subjects such as ecology, ethology, physiology, genetics, taxonomy, phylogeny and zoogeography of species. Reviews will be by invitation, but authors who plan to write a review on a subject of interest to the journal are encouraged to contact the Editor. Subscription information Members of the Worldwide Dragonfly Association (WDA) enjoy a discounted price for the annual subscription in 2010: 70 ,€ 100 $, 52 £ or 9,400 ¥.The rate for institutions, libraries, individuals and students can be obtained from the IJO website at <http://ijo.tu-bs.de/home.html>. For subscription orders or more information please contact the Editorial Office: Dr Reinhard Jodicke, Am Liebfrauenbusch 3, 26655 Westerstede, <[email protected]>. Cover photograph Tetracanthagyna plagiata F stadium female larva consuming a shrimp of the genus Macrobrachium, 31 March 2010 in Singapore; see pp. 153-166. Photo byTzi Ming Leong. © 201 0 Worldwide Dragonfly Association, Westerstede. Printed in Germany by Druckerei Koch, Reutlingen. No part of this journal may be reproduced in any form without prior per[llission of the publishers. Design © by Bernd Kunz; layout by Birgit Radder <[email protected]>