Odonatological Abstract Service published by the INTERNATIONAL DRAGONFLY FUND (IDF) in cooperation with the WORLDWIDE DRAGONFLY ASSOCIATION (WDA) Editors: Dr. Klaus Reinhardt, Dept Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK. Tel. ++44 114 222 0105; E-mail:
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[email protected] Published in Rheinfelden, Germany and printed in Trier, Germany. ISSN 1438-0269 Gomphidia confluens and Sympetrum imitans (new 1997 records in Northeastern China).] Address: Ou, Y.j., Hei- 9968. Anders, U.; Rüppell, G. (1997): Zeitanalyse der longjiang Nongken Normal College, China Balzflüge europäischer Prachtlibellen-Arten zur Betrach- tung ihrer Verwandschaftsbeziehungen (Odonata, Calo- pterygidae). Entomologica Generalis 21(4): 253-264. (in 1999 German, with English summary) ["The courtship flights of males of Calopteryx virgo, C. splendens, C. xantho- 9971. Arnaud, L. (1999): La compétition spermatique stoma and C. haemorrhoidalis where filmed with a slow chez les insectes: les stratégies d‘assurance de la pa- motion camera in N' Germany and S' France. The shots ternité et la préséance du sperme. Biotechnol. Agron. where taken under unmanipulated conditions as well as Soc. Environ. 3(2): 86-103. (in French, with English in a provoked situation, with a fixed female. The para- summary) ["Sperm competition in insects: paternity as- meters wingbeat frequency and phase relationship from surance and sperm precedence. The prediction that in- hind- and forewings where studied. The most important sects, as a result of polyandry, extreme sperm longevity differences are: In C.