NEW AND LITTLE KNOWN PLATYCNEMIDIDAE AND COENAGRIONIDAE FROM NEW GUINEA AND THE SOLOMON ISLANDS (ODÖNATA) by M.A. LIEFTINCKt With notes added by J. van Tol Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands Abstract Five new species of Platycnemididae (Odonata), viz., Rhyacocnemis prothoracica, Salo-mocnemis gen. nov. gerdae, Lieftinckia malaitae, L. isabellae and L. ramosa, and four new-species of the genus Teinobasis (Coenagrionidae), viz., T. simulans, T. obtusilingua, T. chionopleura and T. imitans, are described. Papuagrion gurneyi Liettinck and Teinoba-sis emarginata Lieftinck are synonymized with Teinobasis aluensis Campion. Besides sever-al other species of these families from the Solomon islands are discussed. This posthumous publication concludes the scientific odonatological studies of Dr M. A. Lieftinck. [Introduction] by J. van Tol After the death of Maurits Anne Lieftinck on April 12th, 1985, most of his scientific material was donated to the Rijksmuseum van Natuur-lijke Historie (Leiden). I have thought it one of my first tasks to investigate whether the manu-ences in the next to the figures, the captions of the figures, and the references. No serious problems were met with this work. The number of scientific papers in this field is rather limited, so that I could easily find the works referred to. The captions to the figures were prepared from notes made in pencil with the drawings, as well as from the text. Since the description of the scripts that Dr Lieftinck had at hand, could be specimens from the Thomas W. Donnelly col-prepared for publication. During my last visit to him in February, 1985, he showed me drawings and manuscripts in preparation. One large manuscript on the genus Procordulia and allied genera, for which many drawings were already prepared, is not available for publication; the second manuscript has resulted in the present paper. The manuscript appeared to be almost com-plete, and thus suitable for publication. The drawings and photographs were all mounted on cardboard, and numbered. The descriptions of all but one species were available, but a general introduction, an introduction to the Platycne-mididae and concluding remarks were lacking gratefully acknowledged (the abbreviations lection, numbered "72 x 040", was lacking, I have left out the preliminary new genus and species name for this taxon, which is closely re-lated to Torrenticnemis. The figures, which were already mounted by Dr Lieftinck, are, however, included. The names of chapters added by me are indicated in square brackets. I should like to emphasize explicitly here, that Dr Lieftinck should be considered the au-thor of all new names introduced in this paper. [Acknowledgements] The cooperation of the curators of the Odo-nata departments of the following institutions is or not in a form ready for publicaton. I have added the minimum amount of text, restricting myself to additions that were needed to publish a consistent paper, viz., a title, an abstract, an introduction, a list of species included, a few ti-tles of chapters (i.e. names of genera), the refer-used for the collections are given in brackets): Bernice P. Bishop Museum, Honolulu (BISH), British Museum (Natural History), London (BM), Muséum National d'Histoire Naturelle, Pans (MP) and United States National Museum, Washington (USNM). 263
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