(8761) LEMPERT, J, & H. MILEWSKI, 1980. Mellumbericht 19H0. 127 pp. Mellumrat, Mellum. — (First Author: Vereinstr. 41, D(W)-2000 Hamburg-36). The 1980 observations on the odon. (19 spp.) of the Northsea island of Mellum, Germany, are dealt with on pp. 14-28. Of more than local interest are the detailed descriptions of migrations in Libellula quadrimaculata, Sympetrum danae, S. flavcolum and S. vulgatum.