During the preparation of the Global Species Database Odonata within the framework of the international Catalogue of Life programme (see J, VAN TOL, 2006. www.sp2000.org or www.odonata.info) I noticed seven nomina nova introduced by H. STEINMANN (1997a, b, Tierreich 110/111: 1-500, 1-636). As will be explained below, it has appeared that all new names are unnecessary replacement names. It is considered worthwhile to publish the arguments, since such catalogues may have long-lasting impact on the use of scientific names. The names are in alphabetical order of species-group names. A general remark can also be made. Steinmann argues for all names to be replaced that they are junior secondary homonyms; they are actually junior primary homonyms.