Acerentulus bulgaricus sp. nov. A prosternum B mesosternum C metasternum D part of sternite I E sternites VI–VII F part of sternite V G part of sternite VII H tergites VIII–XII I sternites VIII–XII J striate band on tergite VIII K female squama genitalis. Figures B, D – paratype ISB A-791.1 A, C, E–K – holotype. Scale bars: 10 µm.