Does anyone know what is this mite?

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Jandir Cruz Santos

Is a Mesostigmata, probably a Rhodacaroidea.

Paul Somerfield

agreed, probably...

Keys in PJA Pugh's PhD thesis (Swansea, 1991)

Owen Seeman

I agree too: the divided podonotal shield is also a highly unusual character, and I know of that only in some Rhodacaridae. In Dave Walter's key to Mesostigmata it's characteristic of the genus Minirhodacarellus. Check it out in the following link:

http://itp.lucidcentral.org/id/mites/invasive_mite/Invasive_Mite_Identification/key/Mesostigmata/Media/Html/Minirhodacarellus.htm

I've also seen some Rhodacarus with this character, such as Rhodacarus roseus Oudemans, so I wouldn't be too quick to apply a genus name from the above information. The family Rhodacaridae, though, seems a safe bet.

Kind regards, Owen.

Margarita Ojeda

I agree too. The mite belongs to Rhodacaridae. I think you can check Lee, D.C. 1970 paper about The Rhodacaridae. Also Reham, I et al where you could find a key to the species from the Mediterranean region.