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    Adults and nymphs of a new genus and species of the family Macrochelidae are described from detritus cavities of the leaf-cutting ant, Atta texana. This new species is notable in having peritremes with no posterior loop, a series of small subterminal teeth on the fixed cheliceral digit rather than the single large tooth typical of other macrochelids and well-developed paranal cribral extensions in both the protonymph and the deutonymph, but not in adults.

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    Krantz, Gerald W.; Moser, John. 2012. A new genus and species of Macrochelidae (Acari:Mesostigmata) associated with the Texas leaf cutting ant, Atta texana (Buckley) in Louisiana, USA. International Journal of Acarology 38(7):576-582.


    Mesostigmata, Macrochelidae, Atta, myrmecophile, cheliceral and peritrematic morphology, cribrum

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