My list:

Calopteryx xanthostoma
Calopteryx virgo meridionalis
Calopteryx haemorrhoidalis
Lestes dryas
Lestes barbarus
Lestes virens virens
Chalcolestes viridis
Ischnura graellsii
Ischnura pumilio
Enallagma cyathigerum
Coenagrion scitulum
Coenagrion caerulescens (no photos alas)
Erythromma lindenii
Pyrrhosoma nymphula
Ceriagrion tenellum
Platycnemis acutipennis
Platycnemis latipes
Aeshna cyanea (only 1 exuvia I IDed myself: narrow labium, big size, and general appearance)
Anax imperator
Anax parthenope (no photos)
Boyeria irene
Gomphus sp. (graslinii and/or simillimus, alas no photos)
Gomphus pulchellus
Onychogomphus uncatus
Onychogomphus forcipatus unguiculatus
Cordulegaster boltonii
Oxygastra curtisii
Macromia splendens
Libellula depressa
Libellula quadrimaculata
Libellula fulva (no photo and too short seen voor 100% ID)
Orthetrum cancellatum
Orthetrum coerulescens
Orthetrum brunneum
Sympetrum fonscolombii
Sympetrum striolatum
Sympetrum meridionale
Sympetrum sanguineum
Crocothemis erythraea

38 a 39 soorten, most of them with photos.
Species, seen by others:
Lestes sponsa, Sympecma fusca, Coenagrion puella?, Coenagrion mercuriale?, Erythromma viridulum, Aeshna mixta?, Trithemis annaulata.
(Only 1 species I was eager to see: mercuriale)