Abstract Odonate,assemblages,were,compared,between,replicate sets of shallow,lakes that had,been,created,and acidified by open-cast mining across a large area (2,451ha) of south- west France (Arjuzanx, Landes); one set of lakes (n 55) was,experimentally,restored,by,liming,with,calcium carbonate, whereas another group (n 55) was left as untreated,reference,lakes. Both,odonate,adults,and exuviae,were,sampled,bimonthly,during,MayAugust 1998. Elevated,turbidity,and,conductivity,in limed,lakes were,the only physicochemical,measures,differing between restored and reference lakes, because deacidification occurred naturally, even in reference lakes during the 17 years after the onset of restoration. Restoration,by liming can apparently,lead to effects on lake turbidity that might be,considered,adverse.,Twenty-four,and,19 odonate species occurred among adults and exuviae, respectively, but,there,were,no,significant,differences,in,richness between restored and reference sites. However, signifi- cantly, more exuviae were collected from the reference sites (588 vs. 180), where exuvial diversity and rank abundance,indicated,more,evenly,structured,assemblages than those in restored,lakes. Ordination,showed,that adult assemblages,differed,significantly,between,restored,and reference lakes, and varied highly significantly with lake turbidity. This effect occurred,because,a small,group,of generally,scarce,adults,were,characteristic,of reference sites (Chalcolestes viridis, Lestes virens, Cordulia aenae, Leucorrhinia albifrons ,a ndSympetrum sanguineum).