Reinstatement of Metatarsonemus Attiah (Acari: Tarsonemidae), with description of a new species, redefinition of the genus and a key to the world species Author Lofego, Antonio Carlos Author Cavalcante, Ana Cristina Cerqueira Author Demite, Peterson Rodrigo Author Rezende, José Marcos Author Ochoa, Ronald Author Moraes, Gilberto José De text Zootaxa 2019 2019-12-16 4711 2 307 329 journal article 24605 10.11646/zootaxa.4711.2.5 2f813356-cd98-4a77-b4dc-78a4b15bde56 1175-5326 3577031 0850D3FF-D053-49E0-B67C-A33DE117D1CB Tarsonemus longitibialis (Attiah) Metatarsonemus longitibialis Attiah, 1970: 190 . Tarsonemus longitibialis , Lindquist, 1985:1285 ; Lin and Zhang, 2002: 246 . Remarks : Examining the specimens available to Attiah, in the same slide preparation of the holotype male, Lindquist (1985) detected two adult females that apparently belonged to this species and that were in poor condition. He distinguished them from females of M. simplicissimus by three characteristics, one of which was the absence of fissures in coxisternal plates I to IV. This character state leads us to exclude T. longitibialis from Metatarsonemus , as re-defined here. An examination of the females is necessary before a conclusion about which genus T. longitibialis belongs, but is provisionally retained in Tarsonemus . We tried to analyze these females by examining the same slide studied by Lindquist (1985) which supposedly would contain the females (in poor conditions according to Lindquist) and males of T. longitibialis . But only males were found. Though we carefully looked for them, no females were evident. Possibly they were crystallized by the medium or lost during some remounting procedure. Therefore, a definitive conclusion in this regard requires an examination of additional specimens collected from the type locality.