Volume 16   ROSSI A. 2 Editoriale LOURENÇO W. R., KOURIM M. L. & SADINE S. E. 3­- 14 Scorpions from the region of Tamanrasset, Algeria. Part II. A new African species of the genus Leiurus Ehrenberg, 1828 (Scorpiones: Buthidae) MALAMEL J. J. 15­-20 First report of mating plug formation in Argyrodes flavescens O. Pickard­ Cambridge, 1880 (Araneae: Theridiidae)  ROSSI A. 21-­34 On the status of several species of the genus Chaerilus Simon, 1877 in South-East Asia with the description of a new species from Bali, Indonesia (Scorpiones: Chaerilidae) ROSSI A. 35-44 On two poorly known scorpions of Yemen: Compsobuthus manzonii (Borelli, 1915) and Babycurus borellii sp. n. (Scorpiones: Buthidae)