0 International Journal of Odonatology ~ - Official Organ of the Worldwide Dragonfly Association Editors Reinhard Jodicke, Germany Assistant Editors Gordon Pritchard, Canada Hansruedi Wildermuth, Frank Suhling, Germany Switzerland Editorial Board (2007-2009) Viola Clausnitzer, Germany Albert Orr, Australia Adolfo Cordero, Spain Dennis Paulson, USA Klaas-Douwe Dijkstra, The Netherlands Richard Rowe, Australia Jurg de Marmels, Venezuela Goran Sahlen, Sweden Ola Fincke, USA Wr:ifgang Schneider, Germany Oleg Kosterin, Russia Robby Stoks, Belgium Elena Malikova, Russia Jan van To I, The Netherlands Andreas Martens, Germany Natalia von Ellenrieder, USA Michael May, USA Keith Wilson, UAE Aims and scope The International Journal of Odonatology is aimed at providing a publication outlet for the growing number of students of Odonata. It will address subjects such as the ecology, ethology, physiology, genetics, taxonomy, phylogeny and geographic distribution 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 2009: 70 ,€ 100 $, 52 £ or 11,000 ¥. The rate for institutions, libraries, individuals and students can be obtained from the 1)0 web site at <http://ijo.tu-bs.de/home.htmb. For subscription orders or more information please contact the Editorial Office: Dr. Reinhard Jodicke, Am Liebfrauenbusch 3, 26655 Westerstede, Germany, <[email protected]>. Cover photograph Male of Brachythemis impartita at Lago Omodeo, Sardinia, Italy, 25 June 2008; see pp. 237-256. Photo by Jean-Pierre Baudot. Covered by lSI Web of Sciencec©, Scopus, and other major services © 2009 Worldwide Dragonfly Association, Westerstede. Printed in Germany by Druckerei Koch, Reutlingen. No part of this journal may be reproduced in any form without prior permission of the publishers. design © by Bernd Kunz-<www.berndkunz.de>