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Oosterbroek et al.'s key works also with these pictures: only 2 species have a stigmatic + an apical wing spot, i.e. Dictenidia bimaculata and Ctenophora nigriceps. The latter is not known from the NL, only from Sweden, so this must be D. bimaculata, which is also "the most widespread"and "relatively frequently encountered".

Also this species has 2 appendages on each antennal segment, against 4 in Ctenophora. Difficult to see in these pictures, but maybe this becomes visible if you enlarge the antenna in your picture..