68 + 11 + 147 pp„ 66 maps. 4 figs, incl. Conservation de la faune et Section protection de la nature et des sites du canton de Vaud. Lausanne, 1978. This is the second faunistic treatment of one of the few Swiss regions the dragonfly fauna of which had already been published in detail (J. DE BEAUMONT, 1941, Bull. Soc. vaud. Sci. nai. 61: 441-450), It is, however, more than a mere compilation of old data supplemented by recent observations, for it records the drastic changes in landscape and dragonfly habitats that have occurred since 1941. This finds expression in the circumstance that its publisher is the Nature Conservation Service of the Canton Vaud, whereas the area studied also includes the cantons of Geneva, Neuchâtel, and (partly) Valais, Fribourg and Berne.