FIGURE 1. Geographic position of the study site, Satovcha Graben, SW Bulgaria. Type locality of the new species is outlined with yellow.

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FIGURE 2. Oligaeschna bulgariensis sp. nov. 1, holotype Caт-1190a (part); 2, holotype Caт-1190b (part); 3, paratype Сат-55. Scale bars represent 5 mm in all figures.

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FIGURE 3. Stenolestes rhodopensis sp. nov. 1, holotype Caт-50a (part); 2, holotype Caт-50b (part); 3, 4, Caт-50a and Caт-50b - both wings; 5, paratype Caт-119 (whole insect); 6, paratype Caт-119 (wings only). Scale bars represent 5 mm in 1, 2, 3, 4, 6 ; 1 cm in 5.

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FIGURE 4. Primorilestes magnificus sp. nov. 1, holotype Сат-52 (part); 2, holotype Caт-53 (part); 3, paratype Caт-54. Scale bars represent 5 mm in all figures.

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