A total of about 230 species have been recorded within Europe up to now (Fig. 127). To the most frequently recorded species (min. ~ 70 collections) belong the hygrobionts H. inflatula, O. auricolor, O. crenatomarginata, O. rosea, O. sarraziniana, and O. xanthostigma and the xerobionts H. subfusispora, O. aprilis, O. aristata, O. aurantiorubra, O. carpoboloides, O. comma, O. eucalypti, O. euonymi, O. quaestiformis, O. trapeziformis, O. xanthoguttulata, and O. vinosa.