Description of a new species of Gaeolaelaps (Acari: Laelapidae) from Iran, with a key to world species of the genus with short peritremes Author Vatankhah, Farzaneh Author Nemati, Alireza Author Esfandiari, Mehdi Author Shishehbor, Parviz text Zootaxa 2016 4121 5 566 574 journal article 38879 10.11646/zootaxa.4121.5.6 9e4fc5a3-d47f-4a00-9a22-4ca132d5a1a0 1175-5326 255319 C5179C12-2B14-4224-9C3D-F703EA342698 Notes on Gaeolaelaps with short peritremes Karg (1979 , 1982 , 2006 ) has defined a G . similisetae species group including species that have short peritremes that extend to the middle or at most to anterior margin of coxa II. Nemati & Mohseni (2013) provided a key for 17 species of Gaeolaelaps with short peritremes. In most of these species the peritreme extends to the middle of coxa II, except for G . macra ( Karg, 1978 ) and G . orbiculatus Nemati & Mohseni, 2013 in which the peritremes extend to the anterior level of coxa II. In the present paper we provide a key to 26 species that are considered as Gaeolaelaps which have a peritreme that extends to the anterior level of coxa II. In this group there are some species with very short peritreme extending only to the anterior level of coxa III ( Mašán, 1998 ; Sklyar, 2012 ; Trach, 2012 , 2016 ).