| abstract | The author describes a new species of the genus Myonyssus, M. feideri n.sp., characterized by: the dimension of the dorsal hairs S5, Z5; a genito-vental shield, shaped like a gourd, with maximum width representing 3/4 of its length, and with 23 genito-ventral hairs; an anal shield with the anterior region very concave, its width being twice the length, and with two supplementary hairs at the antero-lateral angles of the shield.Two species new for Romanian fauna, Hypoaspis astronomica (Koch) 1839 and Hypoaspis austriacus (Sellnick) are mentioned and their descriptin is completed. |