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.

  Part of: Shrubovych J, Georgiev DG, Fiera C (2019) A new species of Acerentulus Berlese, 1908 (Protura, Acerentomata, Acerentomidae) from Bulgaria with a revised key to the confinis group. ZooKeys 876: 27-38.