Ewing, 1909 : 66 Gymnolaelaps missouriensis Hennessey & Farrier, 1988 : 30 Hypoaspis ( Laelaspis ) misoriensis Berlese, 1916 : 164 Sellnick, 1935 : 353 Laelaspis austriacus Willmann, 1951 : 113 Gymnolaelaps austriacus Hunter, 1961 : 680 Pseudoparasitus austriacus Hunter, 1966 : 9 Hypoaspis austriacus Hirschmann & Bernhard, 1969 : 132 Hypoaspis ( Euryaspis ) austriacus Bernhard, 1971 : 8 Hypoaspis ( Gymnolaelaps ) austriacus Bregetova, 1977 : 526 Hypoaspis ( Laelaspis ) austriaca Tenorio, 1982 : 264 Karg, 1979 : 101 Camponotus Gymnolaelaps austriacus Hypoaspis austriacus Gymnolaelaps Pseudoparasitus New species and new records of mites of the family Laelapidae (Acari: Mesostigmata) associated with ants in Iran Joharchi, Omid Halliday, Bruce Saboori, Alireza Kamali, Karim Zootaxa 2011 2972 22 36 Ewing Ewing [151,607,1909,1934] Arachnida Laelapidae Pseudoparasitus GBIF Animalia Mesostigmata 10 32 Arthropoda species missouriensis     Hyletastes missouriensis  Ewing, 1909: 66.    Gymnolaelaps missouriensis.—  Hennessey & Farrier, 1988: 30.    Hypoaspis( Laelaspis) misoriensis(sic).— Babaeian et al., 2010: 328.  Pseudoparasitus obsoletus  Berlese, 1916: 164(synonymy by Hennessey & Farrier, 1988).  Laelaspis austriacus  Sellnick, 1935: 353(synonymy by Hennessey & Farrier, 1988).  Laelaspis austriacus.—  Willmann, 1951: 113.    Gymnolaelaps austriacus.—  Hunter, 1961: 680.    Pseudoparasitus austriacus.—  Hunter, 1966: 9.    Hypoaspis austriacus.—  Hirschmann & Bernhard, 1969: 132.    Hypoaspis( Euryaspis) austriacus.—  Bernhard, 1971: 8.    Hypoaspis( Gymnolaelaps) austriacus.—  Bregetova, 1977: 526.    Hypoaspis( Laelaspis) austriaca.—  Tenorio, 1982: 264;  Karg, 1979: 101; 1989a: 120; 1993: 161.  Specimens examined.Three females, Karaj, Shahrestanak, O. Joharchi coll., 18 September 2009, 35˚56’ N, 51˚22’ E, alt. 2330 m, in nest of  Camponotussp.  Notes.The synonymy presented above shows that this species has had a very unstable taxonomic history. Most of the information on this species has been published under the names  Gymnolaelaps austriacusor  Hypoaspis austriacus. Hunter (1961)placed this species in  Gymnolaelaps, but later ( Hunter, 1966) moved it to  Pseudoparasitus. The species may be recognised by the podal plates behind coxa IV, which are narrower than for other species in the genus, the very long and narrow metapodal plates, the very wide rounded genito-ventral shield with four pairs of setae, including two pairs of ventral setae inserted well inside the shield, and a pair of opisthogastric setae in the soft skin between the genito-ventral and anal shields. We can confirm the observations by Sellnick (1935), Hunter (1966), Bernhard (1971)and Bregetova (1977), that this species has only a single tooth on the movable digit of the chelicera. Our specimens agree completely with Bregetova (1977, Figure 417), who showed that the fixed digit has a small distal tooth and a larger bifid proximal tooth. The illustration of the chelicera in Hennessey & Farrier (1988)is not detailed enough to allow this comparison.